634371701 has 4 divisors (see below), whose sum is σ = 634889100. Its totient is φ = 633854304.

The previous prime is 634371691. The next prime is 634371719. The reversal of 634371701 is 107173436.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 439908676 + 194463025 = 20974^2 + 13945^2 .

It is a cyclic number.

It is not a de Polignac number, because 634371701 - 2¹⁰ = 634370677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634371301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256856 + ... + 259313.

It is an arithmetic number, because the mean of its divisors is an integer number (158722275).

Almost surely, 2^634371701 is an apocalyptic number.

It is an amenable number.

634371701 is a deficient number, since it is larger than the sum of its proper divisors (517399).

634371701 is a wasteful number, since it uses less digits than its factorization.

634371701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517398.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 634371701 is about 25186.7366087788. The cubic root of 634371701 is about 859.2402253986.

The spelling of 634371701 in words is "six hundred thirty-four million, three hundred seventy-one thousand, seven hundred one".