634461970 has 8 divisors (see below), whose sum is σ = 1142031564. Its totient is φ = 253784784.

The previous prime is 634461959. The next prime is 634461979. The reversal of 634461970 is 79164436.

It can be written as a sum of positive squares in 2 ways, for example, as 592094889 + 42367081 = 24333^2 + 6509^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (634461979) 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, 31723089 + ... + 31723108.

Almost surely, 2^634461970 is an apocalyptic number.

634461970 is a deficient number, since it is larger than the sum of its proper divisors (507569594).

634461970 is a wasteful number, since it uses less digits than its factorization.

634461970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63446204.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 634461970 is about 25188.5285397937. The cubic root of 634461970 is about 859.2809791486.

The spelling of 634461970 in words is "six hundred thirty-four million, four hundred sixty-one thousand, nine hundred seventy".