634228337 has 2 divisors, whose sum is σ = 634228338. Its totient is φ = 634228336.

The previous prime is 634228327. The next prime is 634228391. The reversal of 634228337 is 733822436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 462723121 + 171505216 = 21511^2 + 13096^2 .

It is a cyclic number.

It is not a de Polignac number, because 634228337 - 2⁸ = 634228081 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 634228337.

It is not a weakly prime, because it can be changed into another prime (634228327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317114168 + 317114169.

It is an arithmetic number, because the mean of its divisors is an integer number (317114169).

Almost surely, 2^634228337 is an apocalyptic number.

It is an amenable number.

634228337 is a deficient number, since it is larger than the sum of its proper divisors (1).

634228337 is an equidigital number, since it uses as much as digits as its factorization.

634228337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 38.

The square root of 634228337 is about 25183.8904262229. The cubic root of 634228337 is about 859.1754928996.

The spelling of 634228337 in words is "six hundred thirty-four million, two hundred twenty-eight thousand, three hundred thirty-seven".