61739434 has 8 divisors (see below), whose sum is σ = 95802660. Its totient is φ = 29805216.

The previous prime is 61739407. The next prime is 61739437. The reversal of 61739434 is 43493716.

61739434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 61575409 + 164025 = 7847^2 + 405^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 61739393 and 61739402.

It is not an unprimeable number, because it can be changed into a prime (61739437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532179 + ... + 532294.

Almost surely, 2^61739434 is an apocalyptic number.

61739434 is a deficient number, since it is larger than the sum of its proper divisors (34063226).

61739434 is a wasteful number, since it uses less digits than its factorization.

61739434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064504.

The product of its digits is 54432, while the sum is 37.

The square root of 61739434 is about 7857.4444955087. Note that the first 4 decimals coincide. The cubic root of 61739434 is about 395.2339243567.

The spelling of 61739434 in words is "sixty-one million, seven hundred thirty-nine thousand, four hundred thirty-four".