172087233 has 8 divisors (see below), whose sum is σ = 231201696. Its totient is φ = 113848800.

The previous prime is 172087217. The next prime is 172087241. The reversal of 172087233 is 332780271.

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

It is not a de Polignac number, because 172087233 - 2⁴ = 172087217 is a prime.

It is a super-2 number, since 2×172087233² = 59228031523192578, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 172087194 and 172087203.

It is not an unprimeable number, because it can be changed into a prime (172087273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218548 + ... + 219333.

It is an arithmetic number, because the mean of its divisors is an integer number (28900212).

Almost surely, 2^172087233 is an apocalyptic number.

It is an amenable number.

172087233 is a deficient number, since it is larger than the sum of its proper divisors (59114463).

172087233 is a wasteful number, since it uses less digits than its factorization.

172087233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438015.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 172087233 is about 13118.2023539813. The cubic root of 172087233 is about 556.2237779500.

The spelling of 172087233 in words is "one hundred seventy-two million, eighty-seven thousand, two hundred thirty-three".