64070739 has 12 divisors (see below), whose sum is σ = 97990776. Its totient is φ = 40201152.

The previous prime is 64070737. The next prime is 64070761. The reversal of 64070739 is 93707046.

64070739 is a `hidden beast` number, since 640 + 7 + 0 + 7 + 3 + 9 = 666.

64070739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64070739 - 2¹ = 64070737 is a prime.

It is a super-2 number, since 2×64070739² = 8210119192012242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64070737) 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 11 ways as a sum of consecutive naturals, for example, 209229 + ... + 209534.

It is an arithmetic number, because the mean of its divisors is an integer number (8165898).

Almost surely, 2^64070739 is an apocalyptic number.

64070739 is a deficient number, since it is larger than the sum of its proper divisors (33920037).

64070739 is a wasteful number, since it uses less digits than its factorization.

64070739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418786 (or 418783 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 64070739 is about 8004.4199664935. The cubic root of 64070739 is about 400.1473186530.

The spelling of 64070739 in words is "sixty-four million, seventy thousand, seven hundred thirty-nine".