993415491 has 18 divisors (see below), whose sum is σ = 1482727740. Its totient is φ = 640907640.

The previous prime is 993415487. The next prime is 993415529. The reversal of 993415491 is 194514399.

993415491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 993415491 - 2² = 993415487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (993415421) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 48781 + ... + 66078.

Almost surely, 2^993415491 is an apocalyptic number.

993415491 is a deficient number, since it is larger than the sum of its proper divisors (489312249).

993415491 is a wasteful number, since it uses less digits than its factorization.

993415491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114927 (or 114893 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 993415491 is about 31518.4944278752. The cubic root of 993415491 is about 997.8003286604.

It can be divided in two parts, 9934 and 15491, that added together give a triangular number (25425 = T₂₂₅).

The spelling of 993415491 in words is "nine hundred ninety-three million, four hundred fifteen thousand, four hundred ninety-one".