693977384 has 8 divisors (see below), whose sum is σ = 1301207610. Its totient is φ = 346988688.

The previous prime is 693977381. The next prime is 693977393. The reversal of 693977384 is 483779396.

It can be written as a sum of positive squares in only one way, i.e., 584188900 + 109788484 = 24170^2 + 10478^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (693977381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43373579 + ... + 43373594.

Almost surely, 2^693977384 is an apocalyptic number.

It is an amenable number.

693977384 is a deficient number, since it is larger than the sum of its proper divisors (607230226).

693977384 is a wasteful number, since it uses less digits than its factorization.

693977384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86747179 (or 86747175 counting only the distinct ones).

The product of its digits is 6858432, while the sum is 56.

The square root of 693977384 is about 26343.4504953319. The cubic root of 693977384 is about 885.3502328138.

The spelling of 693977384 in words is "six hundred ninety-three million, nine hundred seventy-seven thousand, three hundred eighty-four".