172990411 has 8 divisors (see below), whose sum is σ = 189416448. Its totient is φ = 156681000.

The previous prime is 172990399. The next prime is 172990427. The reversal of 172990411 is 114099271.

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

It is a cyclic number.

It is not a de Polignac number, because 172990411 - 2⁵ = 172990379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172990451) 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, 26035 + ... + 31996.

It is an arithmetic number, because the mean of its divisors is an integer number (23677056).

Almost surely, 2^172990411 is an apocalyptic number.

172990411 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

172990411 is a deficient number, since it is larger than the sum of its proper divisors (16426037).

172990411 is a wasteful number, since it uses less digits than its factorization.

172990411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58313.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 172990411 is about 13152.5819138297. The cubic root of 172990411 is about 557.1951704831.

The spelling of 172990411 in words is "one hundred seventy-two million, nine hundred ninety thousand, four hundred eleven".