87404811 has 32 divisors (see below), whose sum is σ = 131208000. Its totient is φ = 51383808.

The previous prime is 87404809. The next prime is 87404827. The reversal of 87404811 is 11840478.

It is not a de Polignac number, because 87404811 - 2¹ = 87404809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87404831) 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 31 ways as a sum of consecutive naturals, for example, 122925 + ... + 123633.

It is an arithmetic number, because the mean of its divisors is an integer number (4100250).

Almost surely, 2^87404811 is an apocalyptic number.

87404811 is a deficient number, since it is larger than the sum of its proper divisors (43803189).

87404811 is a wasteful number, since it uses less digits than its factorization.

87404811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863.

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 87404811 is about 9349.0540163163. The cubic root of 87404811 is about 443.7909544691.

The spelling of 87404811 in words is "eighty-seven million, four hundred four thousand, eight hundred eleven".