630739325 has 6 divisors (see below), whose sum is σ = 782116794. Its totient is φ = 504591440.

The previous prime is 630739309. The next prime is 630739331. The reversal of 630739325 is 523937036.

630739325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 41512249 + 589227076 = 6443^2 + 24274^2 .

It is not a de Polignac number, because 630739325 - 2⁴ = 630739309 is a prime.

It is a super-2 number, since 2×630739325² = 795664192202911250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12614762 + ... + 12614811.

It is an arithmetic number, because the mean of its divisors is an integer number (130352799).

Almost surely, 2^630739325 is an apocalyptic number.

It is an amenable number.

630739325 is a deficient number, since it is larger than the sum of its proper divisors (151377469).

630739325 is a wasteful number, since it uses less digits than its factorization.

630739325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25229583 (or 25229578 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 38.

The square root of 630739325 is about 25114.5241842246. The cubic root of 630739325 is about 857.5970984857.

The spelling of 630739325 in words is "six hundred thirty million, seven hundred thirty-nine thousand, three hundred twenty-five".