630761732 has 6 divisors (see below), whose sum is σ = 1103833038. Its totient is φ = 315380864.

The previous prime is 630761731. The next prime is 630761749. The reversal of 630761732 is 237167036.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 581002816 + 49758916 = 24104^2 + 7054^2 .

It is a junction number, because it is equal to n+sod(n) for n = 630761692 and 630761701.

It is not an unprimeable number, because it can be changed into a prime (630761731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78845213 + ... + 78845220.

It is an arithmetic number, because the mean of its divisors is an integer number (183972173).

Almost surely, 2^630761732 is an apocalyptic number.

It is an amenable number.

630761732 is a deficient number, since it is larger than the sum of its proper divisors (473071306).

630761732 is a wasteful number, since it uses less digits than its factorization.

630761732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157690437 (or 157690435 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 35.

The square root of 630761732 is about 25114.9702767095. The cubic root of 630761732 is about 857.6072537379.

The spelling of 630761732 in words is "six hundred thirty million, seven hundred sixty-one thousand, seven hundred thirty-two".