13770769 has 4 divisors (see below), whose sum is σ = 13815360. Its totient is φ = 13726180.

The previous prime is 13770761. The next prime is 13770773. The reversal of 13770769 is 96707731.

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 not a de Polignac number, because 13770769 - 2³ = 13770761 is a prime.

It is a super-2 number, since 2×13770769² = 379268157702722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13770761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21829 + ... + 22450.

It is an arithmetic number, because the mean of its divisors is an integer number (3453840).

Almost surely, 2^13770769 is an apocalyptic number.

It is an amenable number.

13770769 is a deficient number, since it is larger than the sum of its proper divisors (44591).

13770769 is an equidigital number, since it uses as much as digits as its factorization.

13770769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44590.

The product of its (nonzero) digits is 55566, while the sum is 40.

The square root of 13770769 is about 3710.8986782180. The cubic root of 13770769 is about 239.6915539890.

The spelling of 13770769 in words is "thirteen million, seven hundred seventy thousand, seven hundred sixty-nine".