497322389 has 2 divisors, whose sum is σ = 497322390. Its totient is φ = 497322388.

The previous prime is 497322349. The next prime is 497322407. The reversal of 497322389 is 983223794.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 388287025 + 109035364 = 19705^2 + 10442^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-497322389 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (497322349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248661194 + 248661195.

It is an arithmetic number, because the mean of its divisors is an integer number (248661195).

Almost surely, 2^497322389 is an apocalyptic number.

It is an amenable number.

497322389 is a deficient number, since it is larger than the sum of its proper divisors (1).

497322389 is an equidigital number, since it uses as much as digits as its factorization.

497322389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 47.

The square root of 497322389 is about 22300.7261989380. The cubic root of 497322389 is about 792.2811751418.

The spelling of 497322389 in words is "four hundred ninety-seven million, three hundred twenty-two thousand, three hundred eighty-nine".