686862264 has 64 divisors (see below), whose sum is σ = 1875882240. Its totient is φ = 207848960.

The previous prime is 686862233. The next prime is 686862269. The reversal of 686862264 is 462268686.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686862269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256597 + ... + 259259.

It is an arithmetic number, because the mean of its divisors is an integer number (29310660).

Almost surely, 2^686862264 is an apocalyptic number.

It is an amenable number.

686862264 is an abundant number, since it is smaller than the sum of its proper divisors (1189019976).

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

686862264 is a wasteful number, since it uses less digits than its factorization.

686862264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3660 (or 3656 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 48.

The square root of 686862264 is about 26208.0572343697. The cubic root of 686862264 is about 882.3140987722.

It can be divided in two parts, 6868622 and 64, that added together give a palindrome (6868686).

The spelling of 686862264 in words is "six hundred eighty-six million, eight hundred sixty-two thousand, two hundred sixty-four".