87446691 has 48 divisors (see below), whose sum is σ = 140175360. Its totient is φ = 52289280.

The previous prime is 87446677. The next prime is 87446693. The reversal of 87446691 is 19664478.

It is not a de Polignac number, because 87446691 - 2⁵ = 87446659 is a prime.

Its product of digits (290304) is a multiple of the sum of its prime factors (336).

It is not an unprimeable number, because it can be changed into a prime (87446693) 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 47 ways as a sum of consecutive naturals, for example, 488440 + ... + 488618.

It is an arithmetic number, because the mean of its divisors is an integer number (2920320).

Almost surely, 2^87446691 is an apocalyptic number.

87446691 is a deficient number, since it is larger than the sum of its proper divisors (52728669).

87446691 is a wasteful number, since it uses less digits than its factorization.

87446691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 333 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 87446691 is about 9351.2935468843. The cubic root of 87446691 is about 443.8618239376.

The spelling of 87446691 in words is "eighty-seven million, four hundred forty-six thousand, six hundred ninety-one".