84664925 has 6 divisors (see below), whose sum is σ = 104984538. Its totient is φ = 67731920.

The previous prime is 84664883. The next prime is 84664939. The reversal of 84664925 is 52946648.

It can be written as a sum of positive squares in 3 ways, for example, as 4866436 + 79798489 = 2206^2 + 8933^2 .

It is not a de Polignac number, because 84664925 - 2⁸ = 84664669 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 5 ways as a sum of consecutive naturals, for example, 1693274 + ... + 1693323.

It is an arithmetic number, because the mean of its divisors is an integer number (17497423).

Almost surely, 2^84664925 is an apocalyptic number.

It is an amenable number.

84664925 is a deficient number, since it is larger than the sum of its proper divisors (20319613).

84664925 is a wasteful number, since it uses less digits than its factorization.

84664925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3386607 (or 3386602 counting only the distinct ones).

The product of its digits is 414720, while the sum is 44.

The square root of 84664925 is about 9201.3545198520. The cubic root of 84664925 is about 439.1044543311.

The spelling of 84664925 in words is "eighty-four million, six hundred sixty-four thousand, nine hundred twenty-five".