72629739 has 24 divisors (see below), whose sum is σ = 129120992. Its totient is φ = 38309760.

The previous prime is 72629707. The next prime is 72629741. The reversal of 72629739 is 93792627.

It is a happy number.

It is not a de Polignac number, because 72629739 - 2⁵ = 72629707 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 72629694 and 72629703.

It is not an unprimeable number, because it can be changed into a prime (72629749) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43522 + ... + 45159.

Almost surely, 2^72629739 is an apocalyptic number.

72629739 is a deficient number, since it is larger than the sum of its proper divisors (56491253).

72629739 is a wasteful number, since it uses less digits than its factorization.

72629739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88707 (or 88704 counting only the distinct ones).

The product of its digits is 285768, while the sum is 45.

The square root of 72629739 is about 8522.3083140661. The cubic root of 72629739 is about 417.2261251365.

The spelling of 72629739 in words is "seventy-two million, six hundred twenty-nine thousand, seven hundred thirty-nine".