87664498 has 4 divisors (see below), whose sum is σ = 131496750. Its totient is φ = 43832248.

The previous prime is 87664471. The next prime is 87664531. The reversal of 87664498 is 89446678.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 68013009 + 19651489 = 8247^2 + 4433^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21916123 + ... + 21916126.

Almost surely, 2^87664498 is an apocalyptic number.

87664498 is a deficient number, since it is larger than the sum of its proper divisors (43832252).

87664498 is a wasteful number, since it uses less digits than its factorization.

87664498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43832251.

The product of its digits is 2322432, while the sum is 52.

The square root of 87664498 is about 9362.9321262092. The cubic root of 87664498 is about 444.2300332506.

The spelling of 87664498 in words is "eighty-seven million, six hundred sixty-four thousand, four hundred ninety-eight".