13779097 has 4 divisors (see below), whose sum is σ = 14223616. Its totient is φ = 13334580.

The previous prime is 13779091. The next prime is 13779109. The reversal of 13779097 is 79097731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13779097 is a prime.

It is a super-3 number, since 3×13779097³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13779091) 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, 222213 + ... + 222274.

It is an arithmetic number, because the mean of its divisors is an integer number (3555904).

Almost surely, 2^13779097 is an apocalyptic number.

It is an amenable number.

13779097 is a deficient number, since it is larger than the sum of its proper divisors (444519).

13779097 is an equidigital number, since it uses as much as digits as its factorization.

13779097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444518.

The product of its (nonzero) digits is 83349, while the sum is 43.

The square root of 13779097 is about 3712.0206087790. The cubic root of 13779097 is about 239.7398628138.

The spelling of 13779097 in words is "thirteen million, seven hundred seventy-nine thousand, ninety-seven".