630607345 has 4 divisors (see below), whose sum is σ = 756728820. Its totient is φ = 504485872.

The previous prime is 630607273. The next prime is 630607457. The reversal of 630607345 is 543706036.

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 448465329 + 182142016 = 21177^2 + 13496^2 .

It is a cyclic number.

It is not a de Polignac number, because 630607345 - 2⁷ = 630607217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 630607345.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63060730 + ... + 63060739.

It is an arithmetic number, because the mean of its divisors is an integer number (189182205).

Almost surely, 2^630607345 is an apocalyptic number.

It is an amenable number.

630607345 is a deficient number, since it is larger than the sum of its proper divisors (126121475).

630607345 is a wasteful number, since it uses less digits than its factorization.

630607345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126121474.

The product of its (nonzero) digits is 45360, while the sum is 34.

The square root of 630607345 is about 25111.8964835394. The cubic root of 630607345 is about 857.5372779143.

The spelling of 630607345 in words is "six hundred thirty million, six hundred seven thousand, three hundred forty-five".