690752368 has 20 divisors (see below), whose sum is σ = 1339186360. Its totient is φ = 345155904.

The previous prime is 690752351. The next prime is 690752383. The reversal of 690752368 is 863257096.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13771 + ... + 39637.

It is an arithmetic number, because the mean of its divisors is an integer number (66959318).

Almost surely, 2^690752368 is an apocalyptic number.

It is an amenable number.

690752368 is a deficient number, since it is larger than the sum of its proper divisors (648433992).

690752368 is a wasteful number, since it uses less digits than its factorization.

690752368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27544 (or 27538 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 690752368 is about 26282.1682514971. The cubic root of 690752368 is about 883.9766515130.

The spelling of 690752368 in words is "six hundred ninety million, seven hundred fifty-two thousand, three hundred sixty-eight".