87476881 has 4 divisors (see below), whose sum is σ = 88959600. Its totient is φ = 85994164.

The previous prime is 87476863. The next prime is 87476891. The reversal of 87476881 is 18867478.

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 not a de Polignac number, because 87476881 - 2¹⁷ = 87345809 is a prime.

It is a super-2 number, since 2×87476881² = 15304409418976322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87476801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 741271 + ... + 741388.

It is an arithmetic number, because the mean of its divisors is an integer number (22239900).

Almost surely, 2^87476881 is an apocalyptic number.

It is an amenable number.

87476881 is a deficient number, since it is larger than the sum of its proper divisors (1482719).

87476881 is a wasteful number, since it uses less digits than its factorization.

87476881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482718.

The product of its digits is 602112, while the sum is 49.

The square root of 87476881 is about 9352.9076227663. The cubic root of 87476881 is about 443.9128975174.

The spelling of 87476881 in words is "eighty-seven million, four hundred seventy-six thousand, eight hundred eighty-one".