807985393 has 4 divisors (see below), whose sum is σ = 850510960. Its totient is φ = 765459828.

The previous prime is 807985379. The next prime is 807985397. The reversal of 807985393 is 393589708.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 807985393 - 2²⁵ = 774430961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 807985393.

It is not an unprimeable number, because it can be changed into a prime (807985397) 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, 21262755 + ... + 21262792.

It is an arithmetic number, because the mean of its divisors is an integer number (212627740).

Almost surely, 2^807985393 is an apocalyptic number.

It is an amenable number.

807985393 is a deficient number, since it is larger than the sum of its proper divisors (42525567).

807985393 is a wasteful number, since it uses less digits than its factorization.

807985393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42525566.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The square root of 807985393 is about 28425.0838697092. The cubic root of 807985393 is about 931.3962889083.

The spelling of 807985393 in words is "eight hundred seven million, nine hundred eighty-five thousand, three hundred ninety-three".