87469811 has 24 divisors (see below), whose sum is σ = 109664352. Its totient is φ = 69062400.

The previous prime is 87469751. The next prime is 87469843. The reversal of 87469811 is 11896478.

It is not a de Polignac number, because 87469811 - 2²⁶ = 20360947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87469861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25106 + ... + 28376.

It is an arithmetic number, because the mean of its divisors is an integer number (4569348).

Almost surely, 2^87469811 is an apocalyptic number.

87469811 is a deficient number, since it is larger than the sum of its proper divisors (22194541).

87469811 is a wasteful number, since it uses less digits than its factorization.

87469811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3323 (or 3312 counting only the distinct ones).

The product of its digits is 96768, while the sum is 44.

The square root of 87469811 is about 9352.5296577985. The cubic root of 87469811 is about 443.9009379814.

The spelling of 87469811 in words is "eighty-seven million, four hundred sixty-nine thousand, eight hundred eleven".