87179537 has 2 divisors, whose sum is σ = 87179538. Its totient is φ = 87179536.

The previous prime is 87179497. The next prime is 87179563. The reversal of 87179537 is 73597178.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63744256 + 23435281 = 7984^2 + 4841^2 .

It is a cyclic number.

It is not a de Polignac number, because 87179537 - 2¹⁸ = 86917393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87179491 and 87179500.

It is not a weakly prime, because it can be changed into another prime (87179137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43589768 + 43589769.

It is an arithmetic number, because the mean of its divisors is an integer number (43589769).

Almost surely, 2^87179537 is an apocalyptic number.

It is an amenable number.

87179537 is a deficient number, since it is larger than the sum of its proper divisors (1).

87179537 is an equidigital number, since it uses as much as digits as its factorization.

87179537 is an odious number, because the sum of its binary digits is odd.

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

The square root of 87179537 is about 9336.9982863873. The cubic root of 87179537 is about 443.4093561879.

It can be divided in two parts, 871 and 79537, that added together give a palindrome (80408).

The spelling of 87179537 in words is "eighty-seven million, one hundred seventy-nine thousand, five hundred thirty-seven".