173230690 has 8 divisors (see below), whose sum is σ = 311815260. Its totient is φ = 69292272.

The previous prime is 173230669. The next prime is 173230691. The reversal of 173230690 is 96032371.

It can be written as a sum of positive squares in 2 ways, for example, as 173211921 + 18769 = 13161^2 + 137^2 .

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

It is a super-2 number, since 2×173230690² = 60017743915752200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (173230691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8661525 + ... + 8661544.

Almost surely, 2^173230690 is an apocalyptic number.

173230690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

173230690 is a deficient number, since it is larger than the sum of its proper divisors (138584570).

173230690 is a wasteful number, since it uses less digits than its factorization.

173230690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17323076.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 173230690 is about 13161.7130344040. The cubic root of 173230690 is about 557.4530274728.

The spelling of 173230690 in words is "one hundred seventy-three million, two hundred thirty thousand, six hundred ninety".