993415469 has 2 divisors, whose sum is σ = 993415470. Its totient is φ = 993415468.

The previous prime is 993415421. The next prime is 993415477. The reversal of 993415469 is 964514399.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 785680900 + 207734569 = 28030^2 + 14413^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-993415469 is a prime.

It is a super-2 number, since 2×993415469² = 1973748588096979922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (993415669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496707734 + 496707735.

It is an arithmetic number, because the mean of its divisors is an integer number (496707735).

Almost surely, 2^993415469 is an apocalyptic number.

It is an amenable number.

993415469 is a deficient number, since it is larger than the sum of its proper divisors (1).

993415469 is an equidigital number, since it uses as much as digits as its factorization.

993415469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1049760, while the sum is 50.

The square root of 993415469 is about 31518.4940788738. The cubic root of 993415469 is about 997.8003212947.

The spelling of 993415469 in words is "nine hundred ninety-three million, four hundred fifteen thousand, four hundred sixty-nine".