690000189 has 8 divisors (see below), whose sum is σ = 920174592. Its totient is φ = 459912960.

The previous prime is 690000169. The next prime is 690000197. The reversal of 690000189 is 981000096.

It is a happy number.

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

It is not a de Polignac number, because 690000189 - 2⁷ = 690000061 is a prime.

It is a super-2 number, since 2×690000189² = 952200521640071442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690000149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292 + ... + 37149.

It is an arithmetic number, because the mean of its divisors is an integer number (115021824).

Almost surely, 2^690000189 is an apocalyptic number.

It is an amenable number.

690000189 is a deficient number, since it is larger than the sum of its proper divisors (230174403).

690000189 is a wasteful number, since it uses less digits than its factorization.

690000189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43587.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 690000189 is about 26267.8546706807. The cubic root of 690000189 is about 883.6556729220.

The spelling of 690000189 in words is "six hundred ninety million, one hundred eighty-nine", and thus it is an aban number.