686482436 has 12 divisors (see below), whose sum is σ = 1212366540. Its totient is φ = 340092000.

The previous prime is 686482427. The next prime is 686482441. The reversal of 686482436 is 634284686.

It can be written as a sum of positive squares in 2 ways, for example, as 473497600 + 212984836 = 21760^2 + 14594^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 786815 + ... + 787686.

It is an arithmetic number, because the mean of its divisors is an integer number (101030545).

Almost surely, 2^686482436 is an apocalyptic number.

It is an amenable number.

686482436 is a deficient number, since it is larger than the sum of its proper divisors (525884104).

686482436 is a wasteful number, since it uses less digits than its factorization.

686482436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574614 (or 1574612 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 47.

The square root of 686482436 is about 26200.8098348124. The cubic root of 686482436 is about 882.1514318106.

The spelling of 686482436 in words is "six hundred eighty-six million, four hundred eighty-two thousand, four hundred thirty-six".