685252476 has 36 divisors (see below), whose sum is σ = 1764853272. Its totient is φ = 224107104.

The previous prime is 685252457. The next prime is 685252487. The reversal of 685252476 is 674252586.

685252476 is a `hidden beast` number, since 6 + 8 + 52 + 524 + 76 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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, 177666 + ... + 181481.

It is an arithmetic number, because the mean of its divisors is an integer number (49023702).

Almost surely, 2^685252476 is an apocalyptic number.

It is an amenable number.

685252476 is an abundant number, since it is smaller than the sum of its proper divisors (1079600796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

685252476 is a wasteful number, since it uses less digits than its factorization.

685252476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359210 (or 359205 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 685252476 is about 26177.3275182934. The cubic root of 685252476 is about 881.6242711419.

The spelling of 685252476 in words is "six hundred eighty-five million, two hundred fifty-two thousand, four hundred seventy-six".