87693637 has 8 divisors (see below), whose sum is σ = 90853632. Its totient is φ = 84554400.

The previous prime is 87693631. The next prime is 87693649. The reversal of 87693637 is 73639678.

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

It is a cyclic number.

It is not a de Polignac number, because 87693637 - 2⁷ = 87693509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87693631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3678 + ... + 13744.

It is an arithmetic number, because the mean of its divisors is an integer number (11356704).

Almost surely, 2^87693637 is an apocalyptic number.

It is an amenable number.

87693637 is a deficient number, since it is larger than the sum of its proper divisors (3159995).

87693637 is a wasteful number, since it uses less digits than its factorization.

87693637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10379.

The product of its digits is 1143072, while the sum is 49.

The square root of 87693637 is about 9364.4880799753. The cubic root of 87693637 is about 444.2792473387.

The spelling of 87693637 in words is "eighty-seven million, six hundred ninety-three thousand, six hundred thirty-seven".