690648716 has 12 divisors (see below), whose sum is σ = 1211652120. Its totient is φ = 344462400.

The previous prime is 690648709. The next prime is 690648719. The reversal of 690648716 is 617846096.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (690648719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213686 + ... + 216893.

It is an arithmetic number, because the mean of its divisors is an integer number (100971010).

Almost surely, 2^690648716 is an apocalyptic number.

It is an amenable number.

690648716 is a deficient number, since it is larger than the sum of its proper divisors (521003404).

690648716 is a wasteful number, since it uses less digits than its factorization.

690648716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430984 (or 430982 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 690648716 is about 26280.1962701955. The cubic root of 690648716 is about 883.9324337704.

The spelling of 690648716 in words is "six hundred ninety million, six hundred forty-eight thousand, seven hundred sixteen".