87040775 has 12 divisors (see below), whose sum is σ = 108066000. Its totient is φ = 69545280.

The previous prime is 87040739. The next prime is 87040813. The reversal of 87040775 is 57704078.

It is not a de Polignac number, because 87040775 - 2¹² = 87036679 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24566 + ... + 27884.

It is an arithmetic number, because the mean of its divisors is an integer number (9005500).

Almost surely, 2^87040775 is an apocalyptic number.

87040775 is a deficient number, since it is larger than the sum of its proper divisors (21025225).

87040775 is a wasteful number, since it uses less digits than its factorization.

87040775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4378 (or 4373 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 38.

The square root of 87040775 is about 9329.5645664736. The cubic root of 87040775 is about 443.1739758658.

The spelling of 87040775 in words is "eighty-seven million, forty thousand, seven hundred seventy-five".