72890951 has 16 divisors (see below), whose sum is σ = 91054080. Its totient is φ = 56903040.

The previous prime is 72890927. The next prime is 72890957. The reversal of 72890951 is 15909827.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72890951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72890899 and 72890908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72890957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6191 + ... + 13568.

It is an arithmetic number, because the mean of its divisors is an integer number (5690880).

Almost surely, 2^72890951 is an apocalyptic number.

72890951 is a deficient number, since it is larger than the sum of its proper divisors (18163129).

72890951 is a wasteful number, since it uses less digits than its factorization.

72890951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19814.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 72890951 is about 8537.6197502583. The cubic root of 72890951 is about 417.7257096443.

The spelling of 72890951 in words is "seventy-two million, eight hundred ninety thousand, nine hundred fifty-one".