87698825 has 6 divisors (see below), whose sum is σ = 108746574. Its totient is φ = 70159040.

The previous prime is 87698803. The next prime is 87698827. The reversal of 87698825 is 52889678.

It can be written as a sum of positive squares in 3 ways, for example, as 687241 + 87011584 = 829^2 + 9328^2 .

It is not a de Polignac number, because 87698825 - 2¹⁸ = 87436681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87698827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1753952 + ... + 1754001.

It is an arithmetic number, because the mean of its divisors is an integer number (18124429).

Almost surely, 2^87698825 is an apocalyptic number.

It is an amenable number.

87698825 is a deficient number, since it is larger than the sum of its proper divisors (21047749).

87698825 is a wasteful number, since it uses less digits than its factorization.

87698825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3507963 (or 3507958 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 53.

The square root of 87698825 is about 9364.7650798085. The cubic root of 87698825 is about 444.2880084277.

The spelling of 87698825 in words is "eighty-seven million, six hundred ninety-eight thousand, eight hundred twenty-five".