28914177 has 4 divisors (see below), whose sum is σ = 38552240. Its totient is φ = 19276116.

The previous prime is 28914173. The next prime is 28914191. The reversal of 28914177 is 77141982.

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 28914177 - 2² = 28914173 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28914173) 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, 4819027 + ... + 4819032.

It is an arithmetic number, because the mean of its divisors is an integer number (9638060).

Almost surely, 2^28914177 is an apocalyptic number.

It is an amenable number.

28914177 is a deficient number, since it is larger than the sum of its proper divisors (9638063).

28914177 is an equidigital number, since it uses as much as digits as its factorization.

28914177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9638062.

The product of its digits is 28224, while the sum is 39.

The square root of 28914177 is about 5377.1904373939. The cubic root of 28914177 is about 306.9283078747.

The spelling of 28914177 in words is "twenty-eight million, nine hundred fourteen thousand, one hundred seventy-seven".