28369479 has 16 divisors (see below), whose sum is σ = 38564064. Its totient is φ = 18547200.

The previous prime is 28369477. The next prime is 28369513. The reversal of 28369479 is 97496382.

It is not a de Polignac number, because 28369479 - 2¹ = 28369477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28369477) 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, 61309 + ... + 61769.

It is an arithmetic number, because the mean of its divisors is an integer number (2410254).

Almost surely, 2^28369479 is an apocalyptic number.

28369479 is a deficient number, since it is larger than the sum of its proper divisors (10194585).

28369479 is a wasteful number, since it uses less digits than its factorization.

28369479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818.

The product of its digits is 653184, while the sum is 48.

The square root of 28369479 is about 5326.3006862174. The cubic root of 28369479 is about 304.9887266280.

The spelling of 28369479 in words is "twenty-eight million, three hundred sixty-nine thousand, four hundred seventy-nine".