28014399 has 24 divisors (see below), whose sum is σ = 46904832. Its totient is φ = 15780240.

The previous prime is 28014383. The next prime is 28014401. The reversal of 28014399 is 99341082.

It is not a de Polignac number, because 28014399 - 2⁴ = 28014383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28014499) 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, 1342 + ... + 7604.

It is an arithmetic number, because the mean of its divisors is an integer number (1954368).

Almost surely, 2^28014399 is an apocalyptic number.

28014399 is a deficient number, since it is larger than the sum of its proper divisors (18890433).

28014399 is a wasteful number, since it uses less digits than its factorization.

28014399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6347 (or 6344 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 28014399 is about 5292.8630248666. The cubic root of 28014399 is about 303.7109404635.

The spelling of 28014399 in words is "twenty-eight million, fourteen thousand, three hundred ninety-nine".