690006 has 8 divisors (see below), whose sum is σ = 1380024. Its totient is φ = 230000.

The previous prime is 689987. The next prime is 690037. The reversal of 690006 is 600096.

690006 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.

690006 is an admirable number.

It is a super-2 number, since 2×690006² = 952216560072, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57495 + ... + 57506.

It is an arithmetic number, because the mean of its divisors is an integer number (172503).

2⁶⁹⁰⁰⁰⁶ is an apocalyptic number.

690006 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

690006 is a wasteful number, since it uses less digits than its factorization.

690006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115006.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 690006 is about 830.6659978595. The cubic root of 690006 is about 88.3658153553.

It can be divided in two parts, 69000 and 6, that added together give a triangular number (69006 = T₃₇₁).

The spelling of 690006 in words is "six hundred ninety thousand, six".