630634967 has 4 divisors (see below), whose sum is σ = 630906696. Its totient is φ = 630363240.

The previous prime is 630634943. The next prime is 630635003. The reversal of 630634967 is 769436036.

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 630634967 - 2⁶ = 630634903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630634267) 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, 132353 + ... + 137034.

It is an arithmetic number, because the mean of its divisors is an integer number (157726674).

Almost surely, 2^630634967 is an apocalyptic number.

630634967 is a deficient number, since it is larger than the sum of its proper divisors (271729).

630634967 is a wasteful number, since it uses less digits than its factorization.

630634967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271728.

The product of its (nonzero) digits is 489888, while the sum is 44.

The square root of 630634967 is about 25112.4464558912. The cubic root of 630634967 is about 857.5497984096.

The spelling of 630634967 in words is "six hundred thirty million, six hundred thirty-four thousand, nine hundred sixty-seven".