693407938 has 32 divisors (see below), whose sum is σ = 1104998400. Its totient is φ = 325820880.

The previous prime is 693407903. The next prime is 693407941. The reversal of 693407938 is 839704396.

It is a junction number, because it is equal to n+sod(n) for n = 693407891 and 693407900.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529881 + ... + 531187.

It is an arithmetic number, because the mean of its divisors is an integer number (34531200).

Almost surely, 2^693407938 is an apocalyptic number.

693407938 is a deficient number, since it is larger than the sum of its proper divisors (411590462).

693407938 is a wasteful number, since it uses less digits than its factorization.

693407938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582.

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 693407938 is about 26332.6401638727. The cubic root of 693407938 is about 885.1080072889.

The spelling of 693407938 in words is "six hundred ninety-three million, four hundred seven thousand, nine hundred thirty-eight".