13775379 has 16 divisors (see below), whose sum is σ = 18816000. Its totient is φ = 8961696.

The previous prime is 13775369. The next prime is 13775383. The reversal of 13775379 is 97357731.

It is not a de Polignac number, because 13775379 - 2⁵ = 13775347 is a prime.

It is a super-2 number, since 2×13775379² = 379522133187282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13775379.

It is not an unprimeable number, because it can be changed into a prime (13775369) 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, 39297 + ... + 39645.

It is an arithmetic number, because the mean of its divisors is an integer number (1176000).

Almost surely, 2^13775379 is an apocalyptic number.

13775379 is a deficient number, since it is larger than the sum of its proper divisors (5040621).

13775379 is a wasteful number, since it uses less digits than its factorization.

13775379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634.

The product of its digits is 138915, while the sum is 42.

The square root of 13775379 is about 3711.5197695823. The cubic root of 13775379 is about 239.7182979514.

The spelling of 13775379 in words is "thirteen million, seven hundred seventy-five thousand, three hundred seventy-nine".