87497638 has 8 divisors (see below), whose sum is σ = 131301720. Its totient is φ = 43730400.

The previous prime is 87497621. The next prime is 87497659. The reversal of 87497638 is 83679478.

It is a happy number.

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

It is a congruent 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, 2208 + ... + 13411.

It is an arithmetic number, because the mean of its divisors is an integer number (16412715).

Almost surely, 2^87497638 is an apocalyptic number.

87497638 is a deficient number, since it is larger than the sum of its proper divisors (43804082).

87497638 is a wasteful number, since it uses less digits than its factorization.

87497638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18422.

The product of its digits is 2032128, while the sum is 52.

The square root of 87497638 is about 9354.0172118721. The cubic root of 87497638 is about 443.9480061130.

The spelling of 87497638 in words is "eighty-seven million, four hundred ninety-seven thousand, six hundred thirty-eight".