87101487 has 30 divisors (see below), whose sum is σ = 143034584. Its totient is φ = 52782840.

The previous prime is 87101461. The next prime is 87101503. The reversal of 87101487 is 78410178.

It is a de Polignac number, because none of the positive numbers 2^k-87101487 is a prime.

It is a super-2 number, since 2×87101487² = 15173338075222338, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87101447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 5358 + ... + 14244.

Almost surely, 2^87101487 is an apocalyptic number.

87101487 is a deficient number, since it is larger than the sum of its proper divisors (55933097).

87101487 is a wasteful number, since it uses less digits than its factorization.

87101487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8921 (or 8901 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 36.

The square root of 87101487 is about 9332.8177417112. The cubic root of 87101487 is about 443.2769916654.

The spelling of 87101487 in words is "eighty-seven million, one hundred one thousand, four hundred eighty-seven".