87192474 has 8 divisors (see below), whose sum is σ = 174384960. Its totient is φ = 29064156.

The previous prime is 87192451. The next prime is 87192503. The reversal of 87192474 is 47429178.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

87192474 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7266034 + ... + 7266045.

It is an arithmetic number, because the mean of its divisors is an integer number (21798120).

Almost surely, 2^87192474 is an apocalyptic number.

87192474 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87192474 is a wasteful number, since it uses less digits than its factorization.

87192474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14532084.

The product of its digits is 112896, while the sum is 42.

The square root of 87192474 is about 9337.6910422224. The cubic root of 87192474 is about 443.4312883343.

The spelling of 87192474 in words is "eighty-seven million, one hundred ninety-two thousand, four hundred seventy-four".