445693684 has 6 divisors (see below), whose sum is σ = 779963954. Its totient is φ = 222846840.

The previous prime is 445693679. The next prime is 445693691. The reversal of 445693684 is 486396544.

It can be written as a sum of positive squares in only one way, i.e., 363283600 + 82410084 = 19060^2 + 9078^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55711707 + ... + 55711714.

Almost surely, 2^445693684 is an apocalyptic number.

It is an amenable number.

445693684 is a deficient number, since it is larger than the sum of its proper divisors (334270270).

445693684 is a wasteful number, since it uses less digits than its factorization.

445693684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111423425 (or 111423423 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 49.

The square root of 445693684 is about 21111.4585948011. The cubic root of 445693684 is about 763.8571706537.

The spelling of 445693684 in words is "four hundred forty-five million, six hundred ninety-three thousand, six hundred eighty-four".