690852 has 12 divisors (see below), whose sum is σ = 1612016. Its totient is φ = 230280.

The previous prime is 690841. The next prime is 690869. The reversal of 690852 is 258096.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

690852 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28774 + ... + 28797.

2⁶⁹⁰⁸⁵² is an apocalyptic number.

It is an amenable number.

690852 is an abundant number, since it is smaller than the sum of its proper divisors (921164).

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

690852 is a wasteful number, since it uses less digits than its factorization.

690852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57578 (or 57576 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 690852 is about 831.1750718110. The cubic root of 690852 is about 88.4019150162.

The spelling of 690852 in words is "six hundred ninety thousand, eight hundred fifty-two".