634432373 has 2 divisors, whose sum is σ = 634432374. Its totient is φ = 634432372.

The previous prime is 634432321. The next prime is 634432397. The reversal of 634432373 is 373234436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 537173329 + 97259044 = 23177^2 + 9862^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-634432373 is a prime.

It is a super-2 number, since 2×634432373² = 805008871820822258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (634432873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317216186 + 317216187.

It is an arithmetic number, because the mean of its divisors is an integer number (317216187).

Almost surely, 2^634432373 is an apocalyptic number.

It is an amenable number.

634432373 is a deficient number, since it is larger than the sum of its proper divisors (1).

634432373 is an equidigital number, since it uses as much as digits as its factorization.

634432373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 35.

The square root of 634432373 is about 25187.9410234342. The cubic root of 634432373 is about 859.2676174155.

The spelling of 634432373 in words is "six hundred thirty-four million, four hundred thirty-two thousand, three hundred seventy-three".