634323479 has 2 divisors, whose sum is σ = 634323480. Its totient is φ = 634323478.

The previous prime is 634323419. The next prime is 634323511. The reversal of 634323479 is 974323436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 634323479 - 2²⁰ = 633274903 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (634323419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317161739 + 317161740.

It is an arithmetic number, because the mean of its divisors is an integer number (317161740).

Almost surely, 2^634323479 is an apocalyptic number.

634323479 is a deficient number, since it is larger than the sum of its proper divisors (1).

634323479 is an equidigital number, since it uses as much as digits as its factorization.

634323479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 41.

The square root of 634323479 is about 25185.7793010262. The cubic root of 634323479 is about 859.2184530255.

The spelling of 634323479 in words is "six hundred thirty-four million, three hundred twenty-three thousand, four hundred seventy-nine".