87751404 has 48 divisors (see below), whose sum is σ = 245007840. Its totient is φ = 27000000.

The previous prime is 87751403. The next prime is 87751453. The reversal of 87751404 is 40415778.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87751403) 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 15 ways as a sum of consecutive naturals, for example, 29847 + ... + 32654.

It is an arithmetic number, because the mean of its divisors is an integer number (5104330).

Almost surely, 2^87751404 is an apocalyptic number.

It is an amenable number.

87751404 is an abundant number, since it is smaller than the sum of its proper divisors (157256436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87751404 is a wasteful number, since it uses less digits than its factorization.

87751404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62527 (or 62519 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 87751404 is about 9367.5719372738. The cubic root of 87751404 is about 444.3767802453.

It can be divided in two parts, 8775 and 1404, that multiplied together give a square (12320100 = 3510²).

The spelling of 87751404 in words is "eighty-seven million, seven hundred fifty-one thousand, four hundred four".