630724601 has 4 divisors (see below), whose sum is σ = 679241892. Its totient is φ = 582207312.

The previous prime is 630724583. The next prime is 630724609. The reversal of 630724601 is 106427036.

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

It can be written as a sum of positive squares in 2 ways, for example, as 379470400 + 251254201 = 19480^2 + 15851^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630724601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630724609) 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, 24258626 + ... + 24258651.

It is an arithmetic number, because the mean of its divisors is an integer number (169810473).

Almost surely, 2^630724601 is an apocalyptic number.

It is an amenable number.

630724601 is a deficient number, since it is larger than the sum of its proper divisors (48517291).

630724601 is a wasteful number, since it uses less digits than its factorization.

630724601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48517290.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 630724601 is about 25114.2310453655. The cubic root of 630724601 is about 857.5904251753.

The spelling of 630724601 in words is "six hundred thirty million, seven hundred twenty-four thousand, six hundred one".