28475141 has 4 divisors (see below), whose sum is σ = 28634400. Its totient is φ = 28315884.

The previous prime is 28475099. The next prime is 28475147. The reversal of 28475141 is 14157482.

It is a happy number.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28475141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28475098 and 28475107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28475147) 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, 79361 + ... + 79718.

It is an arithmetic number, because the mean of its divisors is an integer number (7158600).

Almost surely, 2^28475141 is an apocalyptic number.

It is an amenable number.

28475141 is a deficient number, since it is larger than the sum of its proper divisors (159259).

28475141 is a wasteful number, since it uses less digits than its factorization.

28475141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159258.

The product of its digits is 8960, while the sum is 32.

The square root of 28475141 is about 5336.2103594217. The cubic root of 28475141 is about 305.3669005713.

The spelling of 28475141 in words is "twenty-eight million, four hundred seventy-five thousand, one hundred forty-one".