28179465 has 16 divisors (see below), whose sum is σ = 46542336. Its totient is φ = 14544000.

The previous prime is 28179449. The next prime is 28179467. The reversal of 28179465 is 56497182.

It is not a de Polignac number, because 28179465 - 2⁴ = 28179449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28179467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29836 + ... + 30765.

It is an arithmetic number, because the mean of its divisors is an integer number (2908896).

Almost surely, 2^28179465 is an apocalyptic number.

It is an amenable number.

28179465 is a deficient number, since it is larger than the sum of its proper divisors (18362871).

28179465 is a wasteful number, since it uses less digits than its factorization.

28179465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60640.

The product of its digits is 120960, while the sum is 42.

The square root of 28179465 is about 5308.4333847191. The cubic root of 28179465 is about 304.3062796452.

The spelling of 28179465 in words is "twenty-eight million, one hundred seventy-nine thousand, four hundred sixty-five".