689836392 has 64 divisors (see below), whose sum is σ = 2189961600. Its totient is φ = 197095680.

The previous prime is 689836379. The next prime is 689836457. The reversal of 689836392 is 293638986.

It is a Harshad number since it is a multiple of its sum of digits (54).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226609 + ... + 229632.

It is an arithmetic number, because the mean of its divisors is an integer number (34218150).

Almost surely, 2^689836392 is an apocalyptic number.

It is an amenable number.

689836392 is an abundant number, since it is smaller than the sum of its proper divisors (1500125208).

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

689836392 is a wasteful number, since it uses less digits than its factorization.

689836392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456263 (or 456253 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The square root of 689836392 is about 26264.7366634429. The cubic root of 689836392 is about 883.5857446305.

The spelling of 689836392 in words is "six hundred eighty-nine million, eight hundred thirty-six thousand, three hundred ninety-two".