630595397 has 4 divisors (see below), whose sum is σ = 650937216. Its totient is φ = 610253580.

The previous prime is 630595391. The next prime is 630595409. The reversal of 630595397 is 793595036.

630595397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 630595397 - 2²² = 626401093 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 (630595391) 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, 10170863 + ... + 10170924.

It is an arithmetic number, because the mean of its divisors is an integer number (162734304).

Almost surely, 2^630595397 is an apocalyptic number.

It is an amenable number.

630595397 is a deficient number, since it is larger than the sum of its proper divisors (20341819).

630595397 is a wasteful number, since it uses less digits than its factorization.

630595397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20341818.

The product of its (nonzero) digits is 765450, while the sum is 47.

The square root of 630595397 is about 25111.6585871981. The cubic root of 630595397 is about 857.5318620137.

The spelling of 630595397 in words is "six hundred thirty million, five hundred ninety-five thousand, three hundred ninety-seven".