28361475 has 24 divisors (see below), whose sum is σ = 52102320. Its totient is φ = 15125760.

The previous prime is 28361453. The next prime is 28361483. The reversal of 28361475 is 57416382.

It is not a de Polignac number, because 28361475 - 2¹² = 28357379 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20334 + ... + 21683.

It is an arithmetic number, because the mean of its divisors is an integer number (2170930).

Almost surely, 2^28361475 is an apocalyptic number.

28361475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28361475 is a deficient number, since it is larger than the sum of its proper divisors (23740845).

28361475 is a wasteful number, since it uses less digits than its factorization.

28361475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42036 (or 42025 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 28361475 is about 5325.5492674465. The cubic root of 28361475 is about 304.9600413476.

The spelling of 28361475 in words is "twenty-eight million, three hundred sixty-one thousand, four hundred seventy-five".