634056623 has 2 divisors, whose sum is σ = 634056624. Its totient is φ = 634056622.

The previous prime is 634056613. The next prime is 634056659. The reversal of 634056623 is 326650436.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 634056623 - 2¹⁰ = 634055599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (634056613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317028311 + 317028312.

It is an arithmetic number, because the mean of its divisors is an integer number (317028312).

Almost surely, 2^634056623 is an apocalyptic number.

634056623 is a deficient number, since it is larger than the sum of its proper divisors (1).

634056623 is an equidigital number, since it uses as much as digits as its factorization.

634056623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 35.

The square root of 634056623 is about 25180.4809922289. The cubic root of 634056623 is about 859.0979468127.

The spelling of 634056623 in words is "six hundred thirty-four million, fifty-six thousand, six hundred twenty-three".