87672893 has 16 divisors (see below), whose sum is σ = 115737984. Its totient is φ = 64296960.

The previous prime is 87672889. The next prime is 87672899. The reversal of 87672893 is 39827678.

It is a happy number.

It is not a de Polignac number, because 87672893 - 2² = 87672889 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87672899) 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, 32180 + ... + 34797.

It is an arithmetic number, because the mean of its divisors is an integer number (7233624).

Almost surely, 2^87672893 is an apocalyptic number.

It is an amenable number.

87672893 is a deficient number, since it is larger than the sum of its proper divisors (28065091).

87672893 is a wasteful number, since it uses less digits than its factorization.

87672893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67012.

The product of its digits is 1016064, while the sum is 50.

The square root of 87672893 is about 9363.3804258932. The cubic root of 87672893 is about 444.2442130390.

The spelling of 87672893 in words is "eighty-seven million, six hundred seventy-two thousand, eight hundred ninety-three".