690674 has 8 divisors (see below), whose sum is σ = 1043328. Its totient is φ = 342900.

The previous prime is 690673. The next prime is 690689. The reversal of 690674 is 476096.

690674 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 690674.

It is not an unprimeable number, because it can be changed into a prime (690673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 842 + ... + 1445.

It is an arithmetic number, because the mean of its divisors is an integer number (130416).

2⁶⁹⁰⁶⁷⁴ is an apocalyptic number.

690674 is a deficient number, since it is larger than the sum of its proper divisors (352654).

690674 is a wasteful number, since it uses less digits than its factorization.

690674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2440.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 690674 is about 831.0679875919. The cubic root of 690674 is about 88.3943220284.

The spelling of 690674 in words is "six hundred ninety thousand, six hundred seventy-four".