993507469 has 2 divisors, whose sum is σ = 993507470. Its totient is φ = 993507468.

The previous prime is 993507401. The next prime is 993507497. The reversal of 993507469 is 964705399.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 516652900 + 476854569 = 22730^2 + 21837^2 .

It is a cyclic number.

It is not a de Polignac number, because 993507469 - 2²⁷ = 859289741 is a prime.

It is a super-2 number, since 2×993507469² = 1974114181917571922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (993507269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496753734 + 496753735.

It is an arithmetic number, because the mean of its divisors is an integer number (496753735).

Almost surely, 2^993507469 is an apocalyptic number.

It is an amenable number.

993507469 is a deficient number, since it is larger than the sum of its proper divisors (1).

993507469 is an equidigital number, since it uses as much as digits as its factorization.

993507469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1837080, while the sum is 52.

The square root of 993507469 is about 31519.9535056764. The cubic root of 993507469 is about 997.8311223707.

The spelling of 993507469 in words is "nine hundred ninety-three million, five hundred seven thousand, four hundred sixty-nine".