993560491 has 8 divisors (see below), whose sum is σ = 1238724864. Its totient is φ = 774202920.

The previous prime is 993560479. The next prime is 993560539. The reversal of 993560491 is 194065399.

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

It is a cyclic number.

It is not a de Polignac number, because 993560491 - 2⁹ = 993559979 is a prime.

It is a super-2 number, since 2×993560491² = 1974324898552322162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (993560411) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6451615 + ... + 6451768.

It is an arithmetic number, because the mean of its divisors is an integer number (154840608).

Almost surely, 2^993560491 is an apocalyptic number.

993560491 is a deficient number, since it is larger than the sum of its proper divisors (245164373).

993560491 is a wasteful number, since it uses less digits than its factorization.

993560491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12903401.

The product of its (nonzero) digits is 262440, while the sum is 46.

The square root of 993560491 is about 31520.7945807208. The cubic root of 993560491 is about 997.8488729705.

The spelling of 993560491 in words is "nine hundred ninety-three million, five hundred sixty thousand, four hundred ninety-one".