72965501 has 4 divisors (see below), whose sum is σ = 83389152. Its totient is φ = 62541852.

The previous prime is 72965489. The next prime is 72965533. The reversal of 72965501 is 10556927.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72965501 - 2¹⁸ = 72703357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72965551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5211815 + ... + 5211828.

It is an arithmetic number, because the mean of its divisors is an integer number (20847288).

Almost surely, 2^72965501 is an apocalyptic number.

It is an amenable number.

72965501 is a deficient number, since it is larger than the sum of its proper divisors (10423651).

72965501 is a wasteful number, since it uses less digits than its factorization.

72965501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10423650.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 72965501 is about 8541.9846054649. The cubic root of 72965501 is about 417.8680722673.

The spelling of 72965501 in words is "seventy-two million, nine hundred sixty-five thousand, five hundred one".