634624733 has 2 divisors, whose sum is σ = 634624734. Its totient is φ = 634624732.

The previous prime is 634624729. The next prime is 634624751. The reversal of 634624733 is 337426436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 444239929 + 190384804 = 21077^2 + 13798^2 .

It is a cyclic number.

It is not a de Polignac number, because 634624733 - 2² = 634624729 is a prime.

It is a super-3 number, since 3×634624733³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (634644733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317312366 + 317312367.

It is an arithmetic number, because the mean of its divisors is an integer number (317312367).

Almost surely, 2^634624733 is an apocalyptic number.

It is an amenable number.

634624733 is a deficient number, since it is larger than the sum of its proper divisors (1).

634624733 is an equidigital number, since it uses as much as digits as its factorization.

634624733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 38.

The square root of 634624733 is about 25191.7592279698. The cubic root of 634624733 is about 859.3544520010.

The spelling of 634624733 in words is "six hundred thirty-four million, six hundred twenty-four thousand, seven hundred thirty-three".