690894 has 24 divisors (see below), whose sum is σ = 1513512. Its totient is φ = 227760.

The previous prime is 690889. The next prime is 690919. The reversal of 690894 is 498096.

690894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

690894 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 11 ways as a sum of consecutive naturals, for example, 2212 + ... + 2504.

It is an arithmetic number, because the mean of its divisors is an integer number (63063).

2⁶⁹⁰⁸⁹⁴ is an apocalyptic number.

690894 is an abundant number, since it is smaller than the sum of its proper divisors (822618).

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

690894 is a wasteful number, since it uses less digits than its factorization.

690894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 690894 is about 831.2003368623. The cubic root of 690894 is about 88.4037064299.

The spelling of 690894 in words is "six hundred ninety thousand, eight hundred ninety-four".