690561712 has 10 divisors (see below), whose sum is σ = 1337963348. Its totient is φ = 345280848.

The previous prime is 690561689. The next prime is 690561719. The reversal of 690561712 is 217165096.

It is not an unprimeable number, because it can be changed into a prime (690561719) 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, 21580038 + ... + 21580069.

Almost surely, 2^690561712 is an apocalyptic number.

It is an amenable number.

690561712 is a deficient number, since it is larger than the sum of its proper divisors (647401636).

690561712 is a wasteful number, since it uses less digits than its factorization.

690561712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43160115 (or 43160109 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 690561712 is about 26278.5409031780. The cubic root of 690561712 is about 883.8953146169.

The spelling of 690561712 in words is "six hundred ninety million, five hundred sixty-one thousand, seven hundred twelve".