13978295 has 4 divisors (see below), whose sum is σ = 16773960. Its totient is φ = 11182632.

The previous prime is 13978271. The next prime is 13978297. The reversal of 13978295 is 59287931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59287931 = 1447 ⋅40973.

It is a cyclic number.

It is not a de Polignac number, because 13978295 - 2¹² = 13974199 is a prime.

It is a super-2 number, since 2×13978295² = 390785462214050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13978297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1397825 + ... + 1397834.

It is an arithmetic number, because the mean of its divisors is an integer number (4193490).

Almost surely, 2^13978295 is an apocalyptic number.

13978295 is a deficient number, since it is larger than the sum of its proper divisors (2795665).

13978295 is an equidigital number, since it uses as much as digits as its factorization.

13978295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2795664.

The product of its digits is 136080, while the sum is 44.

The square root of 13978295 is about 3738.7558090894. The cubic root of 13978295 is about 240.8896092858.

The spelling of 13978295 in words is "thirteen million, nine hundred seventy-eight thousand, two hundred ninety-five".