72896457 has 8 divisors (see below), whose sum is σ = 97315840. Its totient is φ = 48537360.

The previous prime is 72896441. The next prime is 72896471. The reversal of 72896457 is 75469827.

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

It is not a de Polignac number, because 72896457 - 2⁴ = 72896441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72896437) 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 7 ways as a sum of consecutive naturals, for example, 12169 + ... + 17142.

It is an arithmetic number, because the mean of its divisors is an integer number (12164480).

Almost surely, 2^72896457 is an apocalyptic number.

It is an amenable number.

72896457 is a deficient number, since it is larger than the sum of its proper divisors (24419383).

72896457 is a wasteful number, since it uses less digits than its factorization.

72896457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30143.

The product of its digits is 846720, while the sum is 48.

The square root of 72896457 is about 8537.9421993827. The cubic root of 72896457 is about 417.7362273644.

The spelling of 72896457 in words is "seventy-two million, eight hundred ninety-six thousand, four hundred fifty-seven".