690475 has 12 divisors (see below), whose sum is σ = 870480. Its totient is φ = 543200.

The previous prime is 690467. The next prime is 690491. The reversal of 690475 is 574096.

It is not a de Polignac number, because 690475 - 2³ = 690467 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1581 + ... + 1969.

It is an arithmetic number, because the mean of its divisors is an integer number (72540).

2⁶⁹⁰⁴⁷⁵ is an apocalyptic number.

690475 is a deficient number, since it is larger than the sum of its proper divisors (180005).

690475 is a wasteful number, since it uses less digits than its factorization.

690475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470 (or 465 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 690475 is about 830.9482535032. The cubic root of 690475 is about 88.3858316939.

The spelling of 690475 in words is "six hundred ninety thousand, four hundred seventy-five".