28174873 has 2 divisors, whose sum is σ = 28174874. Its totient is φ = 28174872.

The previous prime is 28174849. The next prime is 28174879. The reversal of 28174873 is 37847182.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28174864 + 9 = 5308^2 + 3^2 .

It is a cyclic number.

It is not a de Polignac number, because 28174873 - 2⁵ = 28174841 is a prime.

It is a super-2 number, since 2×28174873² = 1587646937132258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28174879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14087436 + 14087437.

It is an arithmetic number, because the mean of its divisors is an integer number (14087437).

Almost surely, 2^28174873 is an apocalyptic number.

It is an amenable number.

28174873 is a deficient number, since it is larger than the sum of its proper divisors (1).

28174873 is an equidigital number, since it uses as much as digits as its factorization.

28174873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75264, while the sum is 40.

The square root of 28174873 is about 5308.0008477769. Note that the first 3 decimals coincide. The cubic root of 28174873 is about 304.2897492824.

The spelling of 28174873 in words is "twenty-eight million, one hundred seventy-four thousand, eight hundred seventy-three".