686272425 has 12 divisors (see below), whose sum is σ = 1134637200. Its totient is φ = 366011920.

The previous prime is 686272423. The next prime is 686272471. The reversal of 686272425 is 524272686.

It is not a de Polignac number, because 686272425 - 2¹ = 686272423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (686272423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4575075 + ... + 4575224.

It is an arithmetic number, because the mean of its divisors is an integer number (94553100).

Almost surely, 2^686272425 is an apocalyptic number.

It is an amenable number.

686272425 is a deficient number, since it is larger than the sum of its proper divisors (448364775).

686272425 is a wasteful number, since it uses less digits than its factorization.

686272425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9150312 (or 9150307 counting only the distinct ones).

The product of its digits is 322560, while the sum is 42.

The square root of 686272425 is about 26196.8018086178. The cubic root of 686272425 is about 882.0614657315.

The spelling of 686272425 in words is "six hundred eighty-six million, two hundred seventy-two thousand, four hundred twenty-five".