634447007 has 4 divisors (see below), whose sum is σ = 656324520. Its totient is φ = 612569496.

The previous prime is 634447003. The next prime is 634447049. The reversal of 634447007 is 700744436.

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

It is a cyclic number.

It is not a de Polignac number, because 634447007 - 2² = 634447003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634447003) 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, 10938713 + ... + 10938770.

It is an arithmetic number, because the mean of its divisors is an integer number (164081130).

Almost surely, 2^634447007 is an apocalyptic number.

634447007 is a deficient number, since it is larger than the sum of its proper divisors (21877513).

634447007 is a wasteful number, since it uses less digits than its factorization.

634447007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21877512.

The product of its (nonzero) digits is 56448, while the sum is 35.

The square root of 634447007 is about 25188.2315179133. The cubic root of 634447007 is about 859.2742240695.

The spelling of 634447007 in words is "six hundred thirty-four million, four hundred forty-seven thousand, seven".