172010399 has 8 divisors (see below), whose sum is σ = 195806592. Its totient is φ = 149574040.

The previous prime is 172010383. The next prime is 172010417. The reversal of 172010399 is 993010271.

It is a happy number.

172010399 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.

It is not a de Polignac number, because 172010399 - 2⁴ = 172010383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172010359) 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, 339689 + ... + 340194.

It is an arithmetic number, because the mean of its divisors is an integer number (24475824).

Almost surely, 2^172010399 is an apocalyptic number.

172010399 is a deficient number, since it is larger than the sum of its proper divisors (23796193).

172010399 is a wasteful number, since it uses less digits than its factorization.

172010399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679917.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 172010399 is about 13115.2735007700. The cubic root of 172010399 is about 556.1409841657.

The spelling of 172010399 in words is "one hundred seventy-two million, ten thousand, three hundred ninety-nine".