13772859 has 8 divisors (see below), whose sum is σ = 18381120. Its totient is φ = 9173256.

The previous prime is 13772827. The next prime is 13772867. The reversal of 13772859 is 95827731.

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

It is not a de Polignac number, because 13772859 - 2⁵ = 13772827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13772859.

It is not an unprimeable number, because it can be changed into a prime (13772809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4372 + ... + 6830.

It is an arithmetic number, because the mean of its divisors is an integer number (2297640).

Almost surely, 2^13772859 is an apocalyptic number.

13772859 is a deficient number, since it is larger than the sum of its proper divisors (4608261).

13772859 is a wasteful number, since it uses less digits than its factorization.

13772859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4329.

The product of its digits is 105840, while the sum is 42.

The square root of 13772859 is about 3711.1802704800. The cubic root of 13772859 is about 239.7036794316.

The spelling of 13772859 in words is "thirteen million, seven hundred seventy-two thousand, eight hundred fifty-nine".