690675 has 12 divisors (see below), whose sum is σ = 1142040. Its totient is φ = 368320.

The previous prime is 690673. The next prime is 690689. The reversal of 690675 is 576096.

It is not a de Polignac number, because 690675 - 2¹ = 690673 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4530 + ... + 4679.

It is an arithmetic number, because the mean of its divisors is an integer number (95170).

2⁶⁹⁰⁶⁷⁵ is an apocalyptic number.

690675 is a deficient number, since it is larger than the sum of its proper divisors (451365).

690675 is a wasteful number, since it uses less digits than its factorization.

690675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9222 (or 9217 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 690675 is about 831.0685892271. The cubic root of 690675 is about 88.3943646893.

The spelling of 690675 in words is "six hundred ninety thousand, six hundred seventy-five".