686410479 has 24 divisors (see below), whose sum is σ = 1075419072. Its totient is φ = 420180480.

The previous prime is 686410469. The next prime is 686410481. The reversal of 686410479 is 974014686.

It is not a de Polignac number, because 686410479 - 2¹¹ = 686408431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686410469) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48439 + ... + 60984.

It is an arithmetic number, because the mean of its divisors is an integer number (44809128).

Almost surely, 2^686410479 is an apocalyptic number.

686410479 is a deficient number, since it is larger than the sum of its proper divisors (389008593).

686410479 is a wasteful number, since it uses less digits than its factorization.

686410479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109487 (or 109484 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 686410479 is about 26199.4366160801. The cubic root of 686410479 is about 882.1206084007.

The spelling of 686410479 in words is "six hundred eighty-six million, four hundred ten thousand, four hundred seventy-nine".