87486957 has 6 divisors (see below), whose sum is σ = 126370062. Its totient is φ = 58324632.

The previous prime is 87486953. The next prime is 87486961. The reversal of 87486957 is 75968478.

It is an interprime number because it is at equal distance from previous prime (87486953) and next prime (87486961).

It can be written as a sum of positive squares in only one way, i.e., 82192356 + 5294601 = 9066^2 + 2301^2 .

It is not a de Polignac number, because 87486957 - 2² = 87486953 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87486953) 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 5 ways as a sum of consecutive naturals, for example, 4860378 + ... + 4860395.

It is an arithmetic number, because the mean of its divisors is an integer number (21061677).

Almost surely, 2^87486957 is an apocalyptic number.

It is an amenable number.

87486957 is a deficient number, since it is larger than the sum of its proper divisors (38883105).

87486957 is a wasteful number, since it uses less digits than its factorization.

87486957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9720779 (or 9720776 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The square root of 87486957 is about 9353.4462632764. The cubic root of 87486957 is about 443.9299408573.

The spelling of 87486957 in words is "eighty-seven million, four hundred eighty-six thousand, nine hundred fifty-seven".