690252352 has 14 divisors (see below), whose sum is σ = 1369719638. Its totient is φ = 345126144.

The previous prime is 690252347. The next prime is 690252359. The reversal of 690252352 is 253252096.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 416813056 + 273439296 = 20416^2 + 16536^2 .

It is not an unprimeable number, because it can be changed into a prime (690252359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5392533 + ... + 5392660.

It is an arithmetic number, because the mean of its divisors is an integer number (97837117).

Almost surely, 2^690252352 is an apocalyptic number.

It is an amenable number.

690252352 is a deficient number, since it is larger than the sum of its proper divisors (679467286).

690252352 is a wasteful number, since it uses less digits than its factorization.

690252352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10785205 (or 10785195 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 690252352 is about 26272.6540722478. The cubic root of 690252352 is about 883.7633048378.

The spelling of 690252352 in words is "six hundred ninety million, two hundred fifty-two thousand, three hundred fifty-two".