686046025 has 12 divisors (see below), whose sum is σ = 972225472. Its totient is φ = 470431440.

The previous prime is 686046017. The next prime is 686046059. The reversal of 686046025 is 520640686.

It is not a de Polignac number, because 686046025 - 2³ = 686046017 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian 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, 1959957 + ... + 1960306.

Almost surely, 2^686046025 is an apocalyptic number.

It is an amenable number.

686046025 is a deficient number, since it is larger than the sum of its proper divisors (286179447).

686046025 is a wasteful number, since it uses less digits than its factorization.

686046025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3920280 (or 3920275 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 686046025 is about 26192.4803140138. The cubic root of 686046025 is about 881.9644582494.

The spelling of 686046025 in words is "six hundred eighty-six million, forty-six thousand, twenty-five".