87366637 has 4 divisors (see below), whose sum is σ = 87945376. Its totient is φ = 86787900.

The previous prime is 87366611. The next prime is 87366641. The reversal of 87366637 is 73666378.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87366637 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87366607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289143 + ... + 289444.

It is an arithmetic number, because the mean of its divisors is an integer number (21986344).

Almost surely, 2^87366637 is an apocalyptic number.

87366637 is the 5397-th hex number.

It is an amenable number.

87366637 is a deficient number, since it is larger than the sum of its proper divisors (578739).

87366637 is a wasteful number, since it uses less digits than its factorization.

87366637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578738.

The product of its digits is 762048, while the sum is 46.

The square root of 87366637 is about 9347.0121964187. The cubic root of 87366637 is about 443.7263365812.

The spelling of 87366637 in words is "eighty-seven million, three hundred sixty-six thousand, six hundred thirty-seven".