690630312 has 32 divisors (see below), whose sum is σ = 1729411200. Its totient is φ = 229832064.

The previous prime is 690630251. The next prime is 690630313. The reversal of 690630312 is 213036096.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 690630312.

It is not an unprimeable number, because it can be changed into a prime (690630313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8512 + ... + 38127.

It is an arithmetic number, because the mean of its divisors is an integer number (54044100).

Almost surely, 2^690630312 is an apocalyptic number.

It is an amenable number.

690630312 is an abundant number, since it is smaller than the sum of its proper divisors (1038780888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

690630312 is a wasteful number, since it uses less digits than its factorization.

690630312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47265 (or 47261 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 690630312 is about 26279.8461182709. The cubic root of 690630312 is about 883.9245821971.

The spelling of 690630312 in words is "six hundred ninety million, six hundred thirty thousand, three hundred twelve".