690690232 has 16 divisors (see below), whose sum is σ = 1295339760. Its totient is φ = 345266304.

The previous prime is 690690197. The next prime is 690690233. The reversal of 690690232 is 232096096.

It is a junction number, because it is equal to n+sod(n) for n = 690690191 and 690690200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690690233) 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 3 ways as a sum of consecutive naturals, for example, 46053 + ... + 59179.

It is an arithmetic number, because the mean of its divisors is an integer number (80958735).

Almost surely, 2^690690232 is an apocalyptic number.

It is an amenable number.

690690232 is a deficient number, since it is larger than the sum of its proper divisors (604649528).

690690232 is a wasteful number, since it uses less digits than its factorization.

690690232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19710 (or 19706 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 690690232 is about 26280.9861306611. The cubic root of 690690232 is about 883.9501449467.

The spelling of 690690232 in words is "six hundred ninety million, six hundred ninety thousand, two hundred thirty-two".