28174545 has 24 divisors (see below), whose sum is σ = 55813056. Its totient is φ = 12879648.

The previous prime is 28174543. The next prime is 28174547. The reversal of 28174545 is 54547182.

It is an interprime number because it is at equal distance from previous prime (28174543) and next prime (28174547).

It is not a de Polignac number, because 28174545 - 2¹ = 28174543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28174541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44407 + ... + 45036.

It is an arithmetic number, because the mean of its divisors is an integer number (2325544).

Almost surely, 2^28174545 is an apocalyptic number.

It is an amenable number.

28174545 is a deficient number, since it is larger than the sum of its proper divisors (27638511).

28174545 is a wasteful number, since it uses less digits than its factorization.

28174545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89461 (or 89458 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 28174545 is about 5307.9699509323. The cubic root of 28174545 is about 304.2885684734.

The spelling of 28174545 in words is "twenty-eight million, one hundred seventy-four thousand, five hundred forty-five".