634291954 has 4 divisors (see below), whose sum is σ = 951437934. Its totient is φ = 317145976.

The previous prime is 634291937. The next prime is 634291979. The reversal of 634291954 is 459192436.

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

It can be written as a sum of positive squares in only one way, i.e., 548636929 + 85655025 = 23423^2 + 9255^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 634291954.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158572987 + ... + 158572990.

Almost surely, 2^634291954 is an apocalyptic number.

634291954 is a deficient number, since it is larger than the sum of its proper divisors (317145980).

634291954 is a wasteful number, since it uses less digits than its factorization.

634291954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317145979.

The product of its digits is 233280, while the sum is 43.

The square root of 634291954 is about 25185.1534440432. The cubic root of 634291954 is about 859.2042187999.

The spelling of 634291954 in words is "six hundred thirty-four million, two hundred ninety-one thousand, nine hundred fifty-four".