690652368 has 120 divisors (see below), whose sum is σ = 2214733248. Its totient is φ = 196816896.

The previous prime is 690652301. The next prime is 690652373. The reversal of 690652368 is 863256096.

It is a happy number.

690652368 is a `hidden beast` number, since 69 + 0 + 6 + 523 + 68 = 666.

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 566896 + ... + 568112.

Almost surely, 2^690652368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 690652368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1107366624).

690652368 is an abundant number, since it is smaller than the sum of its proper divisors (1524080880).

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

690652368 is a wasteful number, since it uses less digits than its factorization.

690652368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801 (or 1792 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 690652368 is about 26280.2657520810. The cubic root of 690652368 is about 883.9339917817.

The spelling of 690652368 in words is "six hundred ninety million, six hundred fifty-two thousand, three hundred sixty-eight".