693831404 has 48 divisors (see below), whose sum is σ = 1487969280. Its totient is φ = 276307200.

The previous prime is 693831403. The next prime is 693831407. The reversal of 693831404 is 404138396.

693831404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×693831404² = 962804034353222432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (693831403) 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, 28379 + ... + 46829.

It is an arithmetic number, because the mean of its divisors is an integer number (30999360).

Almost surely, 2^693831404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 693831404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (743984640).

693831404 is an abundant number, since it is smaller than the sum of its proper divisors (794137876).

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

693831404 is a wasteful number, since it uses less digits than its factorization.

693831404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18558 (or 18556 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 693831404 is about 26340.6796419531. The cubic root of 693831404 is about 885.2881498635.

The spelling of 693831404 in words is "six hundred ninety-three million, eight hundred thirty-one thousand, four hundred four".