87113775 has 24 divisors (see below), whose sum is σ = 164604544. Its totient is φ = 39823200.

The previous prime is 87113771. The next prime is 87113783. The reversal of 87113775 is 57731178.

It is not a de Polignac number, because 87113775 - 2² = 87113771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87113771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82441 + ... + 83490.

Almost surely, 2^87113775 is an apocalyptic number.

87113775 is a deficient number, since it is larger than the sum of its proper divisors (77490769).

87113775 is a wasteful number, since it uses less digits than its factorization.

87113775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165951 (or 165946 counting only the distinct ones).

The product of its digits is 41160, while the sum is 39.

The square root of 87113775 is about 9333.4760405757. The cubic root of 87113775 is about 443.2978360533.

The spelling of 87113775 in words is "eighty-seven million, one hundred thirteen thousand, seven hundred seventy-five".