72934865 has 8 divisors (see below), whose sum is σ = 87570600. Its totient is φ = 58315392.

The previous prime is 72934853. The next prime is 72934871. The reversal of 72934865 is 56843927.

It can be written as a sum of positive squares in 4 ways, for example, as 3845521 + 69089344 = 1961^2 + 8312^2 .

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 72934865 - 2¹⁴ = 72918481 is a prime.

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, 10661 + ... + 16109.

It is an arithmetic number, because the mean of its divisors is an integer number (10946325).

Almost surely, 2^72934865 is an apocalyptic number.

It is an amenable number.

72934865 is a deficient number, since it is larger than the sum of its proper divisors (14635735).

72934865 is a wasteful number, since it uses less digits than its factorization.

72934865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8131.

The product of its digits is 362880, while the sum is 44.

The square root of 72934865 is about 8540.1911571112. The cubic root of 72934865 is about 417.8095807053.

The spelling of 72934865 in words is "seventy-two million, nine hundred thirty-four thousand, eight hundred sixty-five".