630623770 has 16 divisors (see below), whose sum is σ = 1297283328. Its totient is φ = 216213840.

The previous prime is 630623759. The next prime is 630623771. The reversal of 630623770 is 77326036.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (630623771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4504386 + ... + 4504525.

It is an arithmetic number, because the mean of its divisors is an integer number (81080208).

Almost surely, 2^630623770 is an apocalyptic number.

630623770 is an abundant number, since it is smaller than the sum of its proper divisors (666659558).

630623770 is a wasteful number, since it uses less digits than its factorization.

630623770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9008925.

The product of its (nonzero) digits is 31752, while the sum is 34.

The square root of 630623770 is about 25112.2235176418. The cubic root of 630623770 is about 857.5447230794.

The spelling of 630623770 in words is "six hundred thirty million, six hundred twenty-three thousand, seven hundred seventy".