634326667 has 8 divisors (see below), whose sum is σ = 684163760. Its totient is φ = 584638560.

The previous prime is 634326653. The next prime is 634326673. The reversal of 634326667 is 766623436.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-634326667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (634326607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28317 + ... + 45502.

It is an arithmetic number, because the mean of its divisors is an integer number (85520470).

Almost surely, 2^634326667 is an apocalyptic number.

634326667 is a deficient number, since it is larger than the sum of its proper divisors (49837093).

634326667 is a wasteful number, since it uses less digits than its factorization.

634326667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74493.

The product of its digits is 653184, while the sum is 43.

The square root of 634326667 is about 25185.8425906302. The cubic root of 634326667 is about 859.2198924508.

The spelling of 634326667 in words is "six hundred thirty-four million, three hundred twenty-six thousand, six hundred sixty-seven".