28471125 has 32 divisors (see below), whose sum is σ = 49450752. Its totient is φ = 14520000.

The previous prime is 28471111. The next prime is 28471133. The reversal of 28471125 is 52117482.

It is not a de Polignac number, because 28471125 - 2⁴ = 28471109 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 28471092 and 28471101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6975 + ... + 10275.

It is an arithmetic number, because the mean of its divisors is an integer number (1545336).

Almost surely, 2^28471125 is an apocalyptic number.

28471125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28471125 is a deficient number, since it is larger than the sum of its proper divisors (20979627).

28471125 is a wasteful number, since it uses less digits than its factorization.

28471125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3342 (or 3332 counting only the distinct ones).

The product of its digits is 4480, while the sum is 30.

The square root of 28471125 is about 5335.8340491436. The cubic root of 28471125 is about 305.3525440591.

The spelling of 28471125 in words is "twenty-eight million, four hundred seventy-one thousand, one hundred twenty-five".