87274923 has 16 divisors (see below), whose sum is σ = 129697920. Its totient is φ = 51878016.

The previous prime is 87274921. The next prime is 87274933. The reversal of 87274923 is 32947278.

It is not a de Polignac number, because 87274923 - 2¹ = 87274921 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (87274921) 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, 44065 + ... + 46002.

It is an arithmetic number, because the mean of its divisors is an integer number (8106120).

Almost surely, 2^87274923 is an apocalyptic number.

87274923 is a deficient number, since it is larger than the sum of its proper divisors (42422997).

87274923 is a wasteful number, since it uses less digits than its factorization.

87274923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90106.

The product of its digits is 169344, while the sum is 42.

The square root of 87274923 is about 9342.1048484803. The cubic root of 87274923 is about 443.5710134996.

The spelling of 87274923 in words is "eighty-seven million, two hundred seventy-four thousand, nine hundred twenty-three".