87482881 has 4 divisors (see below), whose sum is σ = 87638832. Its totient is φ = 87326932.

The previous prime is 87482861. The next prime is 87482903. The reversal of 87482881 is 18828478.

It is a happy number.

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 87482881 - 2⁷ = 87482753 is a prime.

It is a super-2 number, since 2×87482881² = 15306508936120322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87482831) 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 3 ways as a sum of consecutive naturals, for example, 77131 + ... + 78256.

It is an arithmetic number, because the mean of its divisors is an integer number (21909708).

Almost surely, 2^87482881 is an apocalyptic number.

It is an amenable number.

87482881 is a deficient number, since it is larger than the sum of its proper divisors (155951).

87482881 is a wasteful number, since it uses less digits than its factorization.

87482881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155950.

The product of its digits is 229376, while the sum is 46.

The square root of 87482881 is about 9353.2283731341. The cubic root of 87482881 is about 443.9230465475.

The spelling of 87482881 in words is "eighty-seven million, four hundred eighty-two thousand, eight hundred eighty-one".