634774017 has 4 divisors (see below), whose sum is σ = 846365360. Its totient is φ = 423182676.

The previous prime is 634774003. The next prime is 634774039. The reversal of 634774017 is 710477436.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 634774017 - 2⁴ = 634774001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (634774087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105795667 + ... + 105795672.

It is an arithmetic number, because the mean of its divisors is an integer number (211591340).

Almost surely, 2^634774017 is an apocalyptic number.

It is an amenable number.

634774017 is a deficient number, since it is larger than the sum of its proper divisors (211591343).

634774017 is a wasteful number, since it uses less digits than its factorization.

634774017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211591342.

The product of its (nonzero) digits is 98784, while the sum is 39.

The square root of 634774017 is about 25194.7220068013. The cubic root of 634774017 is about 859.4218292533.

The spelling of 634774017 in words is "six hundred thirty-four million, seven hundred seventy-four thousand, seventeen".