13426785 has 12 divisors (see below), whose sum is σ = 23273172. Its totient is φ = 7160928.

The previous prime is 13426783. The next prime is 13426801. The reversal of 13426785 is 58762431.

It can be written as a sum of positive squares in 2 ways, for example, as 4498641 + 8928144 = 2121^2 + 2988^2 .

It is not a de Polignac number, because 13426785 - 2¹ = 13426783 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13426783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149142 + ... + 149231.

It is an arithmetic number, because the mean of its divisors is an integer number (1939431).

Almost surely, 2^13426785 is an apocalyptic number.

13426785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13426785 is a deficient number, since it is larger than the sum of its proper divisors (9846387).

13426785 is a wasteful number, since it uses less digits than its factorization.

13426785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298384 (or 298381 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 13426785 is about 3664.2577693170. The cubic root of 13426785 is about 237.6789270318.

The spelling of 13426785 in words is "thirteen million, four hundred twenty-six thousand, seven hundred eighty-five".