493653812 has 6 divisors (see below), whose sum is σ = 863894178. Its totient is φ = 246826904.

The previous prime is 493653799. The next prime is 493653847. The reversal of 493653812 is 218356394.

It can be written as a sum of positive squares in only one way, i.e., 404653456 + 89000356 = 20116^2 + 9434^2 .

It is a super-2 number, since 2×493653812² = 487388172204262688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 493653812.

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, 61706723 + ... + 61706730.

It is an arithmetic number, because the mean of its divisors is an integer number (143982363).

Almost surely, 2^493653812 is an apocalyptic number.

It is an amenable number.

493653812 is a deficient number, since it is larger than the sum of its proper divisors (370240366).

493653812 is a wasteful number, since it uses less digits than its factorization.

493653812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123413457 (or 123413455 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The square root of 493653812 is about 22218.3215387662. The cubic root of 493653812 is about 790.3282361925.

The spelling of 493653812 in words is "four hundred ninety-three million, six hundred fifty-three thousand, eight hundred twelve".