739000061 has 4 divisors (see below), whose sum is σ = 739073724. Its totient is φ = 738926400.

The previous prime is 739000043. The next prime is 739000063. The reversal of 739000061 is 160000937.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 658897561 + 80102500 = 25669^2 + 8950^2 .

It is a cyclic number.

It is not a de Polignac number, because 739000061 - 2⁶ = 738999997 is a prime.

It is a super-2 number, since 2×739000061² = 1092242180316007442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (739000063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18860 + ... + 42821.

It is an arithmetic number, because the mean of its divisors is an integer number (184768431).

Almost surely, 2^739000061 is an apocalyptic number.

It is an amenable number.

739000061 is a deficient number, since it is larger than the sum of its proper divisors (73663).

739000061 is a wasteful number, since it uses less digits than its factorization.

739000061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73662.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 739000061 is about 27184.5555600970. Note that the first 4 decimals coincide. The cubic root of 739000061 is about 904.0965765494.

Adding to 739000061 its reverse (160000937), we get a palindrome (899000998).

The spelling of 739000061 in words is "seven hundred thirty-nine million, sixty-one", and thus it is an aban number.