72313355 has 8 divisors (see below), whose sum is σ = 89121552. Its totient is φ = 56287008.

The previous prime is 72313349. The next prime is 72313363. The reversal of 72313355 is 55331327.

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

It is a cyclic number.

It is not a de Polignac number, because 72313355 - 2²⁶ = 5204491 is a prime.

It is a super-2 number, since 2×72313355² = 10458442622712050, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 195257 + ... + 195626.

It is an arithmetic number, because the mean of its divisors is an integer number (11140194).

Almost surely, 2^72313355 is an apocalyptic number.

72313355 is a deficient number, since it is larger than the sum of its proper divisors (16808197).

72313355 is a wasteful number, since it uses less digits than its factorization.

72313355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390925.

The product of its digits is 9450, while the sum is 29.

The square root of 72313355 is about 8503.7259480771. The cubic root of 72313355 is about 416.6194140192.

The spelling of 72313355 in words is "seventy-two million, three hundred thirteen thousand, three hundred fifty-five".