630347755 has 8 divisors (see below), whose sum is σ = 759362112. Its totient is φ = 502315008.

The previous prime is 630347719. The next prime is 630347759. The reversal of 630347755 is 557743036.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630347755 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630347759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243987 + ... + 246556.

It is an arithmetic number, because the mean of its divisors is an integer number (94920264).

Almost surely, 2^630347755 is an apocalyptic number.

630347755 is a deficient number, since it is larger than the sum of its proper divisors (129014357).

630347755 is a wasteful number, since it uses less digits than its factorization.

630347755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490805.

The product of its (nonzero) digits is 264600, while the sum is 40.

The square root of 630347755 is about 25106.7272857296. The cubic root of 630347755 is about 857.4195931372.

The spelling of 630347755 in words is "six hundred thirty million, three hundred forty-seven thousand, seven hundred fifty-five".