28746171 has 12 divisors (see below), whose sum is σ = 43060472. Its totient is φ = 19163952.

The previous prime is 28746161. The next prime is 28746181. The reversal of 28746171 is 17164782.

It is an interprime number because it is at equal distance from previous prime (28746161) and next prime (28746181).

It is not a de Polignac number, because 28746171 - 2⁵ = 28746139 is a prime.

It is a super-2 number, since 2×28746171² = 1652684694322482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28746101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58906 + ... + 59391.

Almost surely, 2^28746171 is an apocalyptic number.

28746171 is a deficient number, since it is larger than the sum of its proper divisors (14314301).

28746171 is an equidigital number, since it uses as much as digits as its factorization.

28746171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118312 (or 118300 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 28746171 is about 5361.5455794015. The cubic root of 28746171 is about 306.3326831585.

It can be divided in two parts, 2874 and 6171, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 28746171 in words is "twenty-eight million, seven hundred forty-six thousand, one hundred seventy-one".