87763975 has 48 divisors (see below), whose sum is σ = 124992000. Its totient is φ = 60635520.

The previous prime is 87763969. The next prime is 87763997. The reversal of 87763975 is 57936778.

It is a happy number.

It is not a de Polignac number, because 87763975 - 2⁹ = 87763463 is a prime.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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, 440926 + ... + 441124.

It is an arithmetic number, because the mean of its divisors is an integer number (2604000).

Almost surely, 2^87763975 is an apocalyptic number.

87763975 is a deficient number, since it is larger than the sum of its proper divisors (37228025).

87763975 is a wasteful number, since it uses less digits than its factorization.

87763975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 299 counting only the distinct ones).

The product of its digits is 2222640, while the sum is 52.

The square root of 87763975 is about 9368.2428982174. The cubic root of 87763975 is about 444.3979992554.

The spelling of 87763975 in words is "eighty-seven million, seven hundred sixty-three thousand, nine hundred seventy-five".