685620300 has 36 divisors (see below), whose sum is σ = 1983728936. Its totient is φ = 182832000.

The previous prime is 685620289. The next prime is 685620329. The reversal of 685620300 is 3026586.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 1142401 + ... + 1143000.

Almost surely, 2^685620300 is an apocalyptic number.

685620300 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

685620300 is an abundant number, since it is smaller than the sum of its proper divisors (1298108636).

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

685620300 is a wasteful number, since it uses less digits than its factorization.

685620300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285418 (or 2285411 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 685620300 is about 26184.3521974480. The cubic root of 685620300 is about 881.7819865207.

Adding to 685620300 its reverse (3026586), we get a palindrome (688646886).

The spelling of 685620300 in words is "six hundred eighty-five million, six hundred twenty thousand, three hundred".