690808752 has 30 divisors (see below), whose sum is σ = 1933305452. Its totient is φ = 230269536.

The previous prime is 690808711. The next prime is 690808777. The reversal of 690808752 is 257808096.

690808752 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 690808698 and 690808707.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2398498 + ... + 2398785.

Almost surely, 2^690808752 is an apocalyptic number.

It is an amenable number.

690808752 is an abundant number, since it is smaller than the sum of its proper divisors (1242496700).

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

690808752 is a wasteful number, since it uses less digits than its factorization.

690808752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4797297 (or 4797288 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 690808752 is about 26283.2408960539. The cubic root of 690808752 is about 884.0007029608. Note that the first 3 decimals are identical.

The spelling of 690808752 in words is "six hundred ninety million, eight hundred eight thousand, seven hundred fifty-two".