169928841 has 4 divisors (see below), whose sum is σ = 226571792. Its totient is φ = 113285892.

The previous prime is 169928831. The next prime is 169928861. The reversal of 169928841 is 148829961.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 169928841 - 2²⁵ = 136374409 is a prime.

It is a super-2 number, since 2×169928841² = 57751622007206562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (169928831) 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, 28321471 + ... + 28321476.

It is an arithmetic number, because the mean of its divisors is an integer number (56642948).

Almost surely, 2^169928841 is an apocalyptic number.

It is an amenable number.

169928841 is a deficient number, since it is larger than the sum of its proper divisors (56642951).

169928841 is an equidigital number, since it uses as much as digits as its factorization.

169928841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56642950.

The product of its digits is 248832, while the sum is 48.

The square root of 169928841 is about 13035.6757017042. The cubic root of 169928841 is about 553.8885214488. Note that the first 3 decimals are identical.

The spelling of 169928841 in words is "one hundred sixty-nine million, nine hundred twenty-eight thousand, eight hundred forty-one".