993956375 has 16 divisors (see below), whose sum is σ = 1241385600. Its totient is φ = 794570400.

The previous prime is 993956363. The next prime is 993956389. The reversal of 993956375 is 573659399.

It is a de Polignac number, because none of the positive numbers 2^k-993956375 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 993956375.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251666 + ... + 255584.

It is an arithmetic number, because the mean of its divisors is an integer number (77586600).

Almost surely, 2^993956375 is an apocalyptic number.

993956375 is a deficient number, since it is larger than the sum of its proper divisors (247429225).

993956375 is a wasteful number, since it uses less digits than its factorization.

993956375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5963 (or 5953 counting only the distinct ones).

The product of its digits is 6889050, while the sum is 56.

The square root of 993956375 is about 31527.0736827889. The cubic root of 993956375 is about 997.9813862738.

The spelling of 993956375 in words is "nine hundred ninety-three million, nine hundred fifty-six thousand, three hundred seventy-five".