683868432 has 80 divisors (see below), whose sum is σ = 1963985408. Its totient is φ = 203627520.

The previous prime is 683868421. The next prime is 683868473. The reversal of 683868432 is 234868386.

It is a happy number.

It is a super-2 number, since 2×683868432² = 935352064572277248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 1668 + ... + 37020.

Almost surely, 2^683868432 is an apocalyptic number.

683868432 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 683868432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (981992704).

683868432 is an abundant number, since it is smaller than the sum of its proper divisors (1280116976).

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

683868432 is a wasteful number, since it uses less digits than its factorization.

683868432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35408 (or 35402 counting only the distinct ones).

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

The square root of 683868432 is about 26150.8782261705. The cubic root of 683868432 is about 881.0303152615.

The spelling of 683868432 in words is "six hundred eighty-three million, eight hundred sixty-eight thousand, four hundred thirty-two".