87913775 has 6 divisors (see below), whose sum is σ = 109013112. Its totient is φ = 70331000.

The previous prime is 87913769. The next prime is 87913781. The reversal of 87913775 is 57731978.

It is an interprime number because it is at equal distance from previous prime (87913769) and next prime (87913781).

It is not a de Polignac number, because 87913775 - 2⁴ = 87913759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1758251 + ... + 1758300.

It is an arithmetic number, because the mean of its divisors is an integer number (18168852).

Almost surely, 2^87913775 is an apocalyptic number.

87913775 is a deficient number, since it is larger than the sum of its proper divisors (21099337).

87913775 is a wasteful number, since it uses less digits than its factorization.

87913775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3516561 (or 3516556 counting only the distinct ones).

The product of its digits is 370440, while the sum is 47.

The square root of 87913775 is about 9376.2345853759. The cubic root of 87913775 is about 444.6506958798.

It can be divided in two parts, 87913 and 775, that added together give a palindrome (88688).

The spelling of 87913775 in words is "eighty-seven million, nine hundred thirteen thousand, seven hundred seventy-five".