72395013 has 12 divisors (see below), whose sum is σ = 99744864. Its totient is φ = 46704600.

The previous prime is 72395009. The next prime is 72395017. The reversal of 72395013 is 31059327.

It is an interprime number because it is at equal distance from previous prime (72395009) and next prime (72395017).

It is not a de Polignac number, because 72395013 - 2² = 72395009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72395017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9673 + ... + 15438.

It is an arithmetic number, because the mean of its divisors is an integer number (8312072).

Almost surely, 2^72395013 is an apocalyptic number.

It is an amenable number.

72395013 is a deficient number, since it is larger than the sum of its proper divisors (27349851).

72395013 is a wasteful number, since it uses less digits than its factorization.

72395013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25176 (or 25145 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 72395013 is about 8508.5259005306. The cubic root of 72395013 is about 416.7761739548.

The spelling of 72395013 in words is "seventy-two million, three hundred ninety-five thousand, thirteen".