87597947 has 2 divisors, whose sum is σ = 87597948. Its totient is φ = 87597946.

The previous prime is 87597941. The next prime is 87597973. The reversal of 87597947 is 74979578.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87597947 - 2⁸ = 87597691 is a prime.

It is a super-2 number, since 2×87597947² = 15346800637229618, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87597892 and 87597901.

It is not a weakly prime, because it can be changed into another prime (87597941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43798973 + 43798974.

It is an arithmetic number, because the mean of its divisors is an integer number (43798974).

Almost surely, 2^87597947 is an apocalyptic number.

87597947 is a deficient number, since it is larger than the sum of its proper divisors (1).

87597947 is an equidigital number, since it uses as much as digits as its factorization.

87597947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4445280, while the sum is 56.

The square root of 87597947 is about 9359.3774899830. The cubic root of 87597947 is about 444.1175915439.

The spelling of 87597947 in words is "eighty-seven million, five hundred ninety-seven thousand, nine hundred forty-seven".