13770929 has 2 divisors, whose sum is σ = 13770930. Its totient is φ = 13770928.

The previous prime is 13770863. The next prime is 13770959. The reversal of 13770929 is 92907731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12816400 + 954529 = 3580^2 + 977^2 .

It is a cyclic number.

It is not a de Polignac number, because 13770929 - 2¹² = 13766833 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 13770892 and 13770901.

It is not a weakly prime, because it can be changed into another prime (13770959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6885464 + 6885465.

It is an arithmetic number, because the mean of its divisors is an integer number (6885465).

Almost surely, 2^13770929 is an apocalyptic number.

It is an amenable number.

13770929 is a deficient number, since it is larger than the sum of its proper divisors (1).

13770929 is an equidigital number, since it uses as much as digits as its factorization.

13770929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 13770929 is about 3710.9202362756. The cubic root of 13770929 is about 239.6924822960.

The spelling of 13770929 in words is "thirteen million, seven hundred seventy thousand, nine hundred twenty-nine".