3653685394 has 8 divisors (see below), whose sum is σ = 5483469168. Its totient is φ = 1825862340.

The previous prime is 3653685383. The next prime is 3653685397. The reversal of 3653685394 is 4935863563.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3653685397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485512 + ... + 492979.

It is an arithmetic number, because the mean of its divisors is an integer number (685433646).

Almost surely, 2^3653685394 is an apocalyptic number.

3653685394 is a deficient number, since it is larger than the sum of its proper divisors (1829783774).

3653685394 is a wasteful number, since it uses less digits than its factorization.

3653685394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980360.

The product of its digits is 6998400, while the sum is 52.

The square root of 3653685394 is about 60445.7227105442. The cubic root of 3653685394 is about 1540.1997539841.

The spelling of 3653685394 in words is "three billion, six hundred fifty-three million, six hundred eighty-five thousand, three hundred ninety-four".