690874 has 12 divisors (see below), whose sum is σ = 1084986. Its totient is φ = 329912.

The previous prime is 690871. The next prime is 690887. The reversal of 690874 is 478096.

690874 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 648025 + 42849 = 805^2 + 207^2 .

It is not an unprimeable number, because it can be changed into a prime (690871) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 732 + ... + 1384.

2⁶⁹⁰⁸⁷⁴ is an apocalyptic number.

690874 is a deficient number, since it is larger than the sum of its proper divisors (394112).

690874 is a wasteful number, since it uses less digits than its factorization.

690874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 690874 is about 831.1883059813. The cubic root of 690874 is about 88.4028533848.

The spelling of 690874 in words is "six hundred ninety thousand, eight hundred seventy-four".