13928497 has 16 divisors (see below), whose sum is σ = 16070400. Its totient is φ = 11952640.

The previous prime is 13928477. The next prime is 13928503. The reversal of 13928497 is 79482931.

It is not a de Polignac number, because 13928497 - 2²³ = 5539889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13928407) 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, 14529 + ... + 15457.

It is an arithmetic number, because the mean of its divisors is an integer number (1004400).

Almost surely, 2^13928497 is an apocalyptic number.

It is an amenable number.

13928497 is a deficient number, since it is larger than the sum of its proper divisors (2141903).

13928497 is a wasteful number, since it uses less digits than its factorization.

13928497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016.

The product of its digits is 108864, while the sum is 43.

The square root of 13928497 is about 3732.0901650416. The cubic root of 13928497 is about 240.6032106429.

It can be divided in two parts, 1392 and 8497, that added together give a palindrome (9889).

The spelling of 13928497 in words is "thirteen million, nine hundred twenty-eight thousand, four hundred ninety-seven".