72466887 has 4 divisors (see below), whose sum is σ = 96622520. Its totient is φ = 48311256.

The previous prime is 72466883. The next prime is 72466907. The reversal of 72466887 is 78866427.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 72466887 - 2² = 72466883 is a prime.

It is a super-2 number, since 2×72466887² = 10502899422941538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72466883) 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, 12077812 + ... + 12077817.

It is an arithmetic number, because the mean of its divisors is an integer number (24155630).

Almost surely, 2^72466887 is an apocalyptic number.

72466887 is a deficient number, since it is larger than the sum of its proper divisors (24155633).

72466887 is a wasteful number, since it uses less digits than its factorization.

72466887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24155632.

The product of its digits is 903168, while the sum is 48.

The square root of 72466887 is about 8512.7484985755. The cubic root of 72466887 is about 416.9140539076.

The spelling of 72466887 in words is "seventy-two million, four hundred sixty-six thousand, eight hundred eighty-seven".