86869525 has 12 divisors (see below), whose sum is σ = 110630692. Its totient is φ = 67616640.

The previous prime is 86869499. The next prime is 86869537. The reversal of 86869525 is 52596868.

It can be written as a sum of positive squares in 6 ways, for example, as 2486929 + 84382596 = 1577^2 + 9186^2 .

It is not a de Polignac number, because 86869525 - 2²³ = 78480917 is a prime.

It is a Duffinian number.

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, 46032 + ... + 47881.

Almost surely, 2^86869525 is an apocalyptic number.

It is an amenable number.

86869525 is a deficient number, since it is larger than the sum of its proper divisors (23761167).

86869525 is a wasteful number, since it uses less digits than its factorization.

86869525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93960 (or 93955 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 49.

The square root of 86869525 is about 9320.3822346511. The cubic root of 86869525 is about 442.8831414052.

The spelling of 86869525 in words is "eighty-six million, eight hundred sixty-nine thousand, five hundred twenty-five".