87421874 has 16 divisors (see below), whose sum is σ = 134680320. Its totient is φ = 42544320.

The previous prime is 87421849. The next prime is 87421883. The reversal of 87421874 is 47812478.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7322 + ... + 15114.

It is an arithmetic number, because the mean of its divisors is an integer number (8417520).

Almost surely, 2^87421874 is an apocalyptic number.

87421874 is a deficient number, since it is larger than the sum of its proper divisors (47258446).

87421874 is a wasteful number, since it uses less digits than its factorization.

87421874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7945.

The product of its digits is 100352, while the sum is 41.

The square root of 87421874 is about 9349.9665240042. The cubic root of 87421874 is about 443.8198312639.

The spelling of 87421874 in words is "eighty-seven million, four hundred twenty-one thousand, eight hundred seventy-four".