495824921 has 2 divisors, whose sum is σ = 495824922. Its totient is φ = 495824920.

The previous prime is 495824899. The next prime is 495824929. The reversal of 495824921 is 129428594.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 493328521 + 2496400 = 22211^2 + 1580^2 .

It is a cyclic number.

It is not a de Polignac number, because 495824921 - 2¹⁰ = 495823897 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (495824929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247912460 + 247912461.

It is an arithmetic number, because the mean of its divisors is an integer number (247912461).

Almost surely, 2^495824921 is an apocalyptic number.

It is an amenable number.

495824921 is a deficient number, since it is larger than the sum of its proper divisors (1).

495824921 is an equidigital number, since it uses as much as digits as its factorization.

495824921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 44.

The square root of 495824921 is about 22267.1264648136. The cubic root of 495824921 is about 791.4851733805.

The spelling of 495824921 in words is "four hundred ninety-five million, eight hundred twenty-four thousand, nine hundred twenty-one".