87533771 has 16 divisors (see below), whose sum is σ = 96018720. Its totient is φ = 79315200.

The previous prime is 87533759. The next prime is 87533773. The reversal of 87533771 is 17733578.

It is a cyclic number.

It is not a de Polignac number, because 87533771 - 2⁶ = 87533707 is a prime.

It is a super-2 number, since 2×87533771² = 15324322130960882, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (123480) is a multiple of the sum of its prime divisors (686).

It is not an unprimeable number, because it can be changed into a prime (87533773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213815 + ... + 214223.

It is an arithmetic number, because the mean of its divisors is an integer number (6001170).

Almost surely, 2^87533771 is an apocalyptic number.

87533771 is a deficient number, since it is larger than the sum of its proper divisors (8484949).

87533771 is a wasteful number, since it uses less digits than its factorization.

87533771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686.

The product of its digits is 123480, while the sum is 41.

The square root of 87533771 is about 9355.9484286736. The cubic root of 87533771 is about 444.0091085841.

The spelling of 87533771 in words is "eighty-seven million, five hundred thirty-three thousand, seven hundred seventy-one".