13772905 has 8 divisors (see below), whose sum is σ = 16552512. Its totient is φ = 11001648.

The previous prime is 13772903. The next prime is 13772921. The reversal of 13772905 is 50927731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13772905 - 2¹ = 13772903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13772903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2442 + ... + 5788.

It is an arithmetic number, because the mean of its divisors is an integer number (2069064).

Almost surely, 2^13772905 is an apocalyptic number.

It is an amenable number.

13772905 is a deficient number, since it is larger than the sum of its proper divisors (2779607).

13772905 is an equidigital number, since it uses as much as digits as its factorization.

13772905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4175.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 13772905 is about 3711.1864679641. The cubic root of 13772905 is about 239.7039462936.

The spelling of 13772905 in words is "thirteen million, seven hundred seventy-two thousand, nine hundred five".