28173310 has 16 divisors (see below), whose sum is σ = 55322352. Its totient is φ = 10244800.

The previous prime is 28173307. The next prime is 28173311. The reversal of 28173310 is 1337182.

It is a super-2 number, since 2×28173310² = 1587470792712200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28173311) 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, 127951 + ... + 128170.

It is an arithmetic number, because the mean of its divisors is an integer number (3457647).

Almost surely, 2^28173310 is an apocalyptic number.

28173310 is a deficient number, since it is larger than the sum of its proper divisors (27149042).

28173310 is a wasteful number, since it uses less digits than its factorization.

28173310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256139.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 28173310 is about 5307.8536151631. The cubic root of 28173310 is about 304.2841223576.

The spelling of 28173310 in words is "twenty-eight million, one hundred seventy-three thousand, three hundred ten".