87406418 has 32 divisors (see below), whose sum is σ = 152979840. Its totient is φ = 37013760.

The previous prime is 87406399. The next prime is 87406489. The reversal of 87406418 is 81460478.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37388 + ... + 39656.

It is an arithmetic number, because the mean of its divisors is an integer number (4780620).

Almost surely, 2^87406418 is an apocalyptic number.

87406418 is a deficient number, since it is larger than the sum of its proper divisors (65573422).

87406418 is a wasteful number, since it uses less digits than its factorization.

87406418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 87406418 is about 9349.1399604456. The cubic root of 87406418 is about 443.7936742572.

The spelling of 87406418 in words is "eighty-seven million, four hundred six thousand, four hundred eighteen".