72913835 has 4 divisors (see below), whose sum is σ = 87496608. Its totient is φ = 58331064.

The previous prime is 72913817. The next prime is 72913843. The reversal of 72913835 is 53831927.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53831927 = 367 ⋅146681.

It is a cyclic number.

It is not a de Polignac number, because 72913835 - 2⁸ = 72913579 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 7291379 + ... + 7291388.

It is an arithmetic number, because the mean of its divisors is an integer number (21874152).

Almost surely, 2^72913835 is an apocalyptic number.

72913835 is a deficient number, since it is larger than the sum of its proper divisors (14582773).

72913835 is a wasteful number, since it uses less digits than its factorization.

72913835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14582772.

The product of its digits is 45360, while the sum is 38.

The square root of 72913835 is about 8538.9598312675. The cubic root of 72913835 is about 417.7694198480.

The spelling of 72913835 in words is "seventy-two million, nine hundred thirteen thousand, eight hundred thirty-five".