13826407 has 4 divisors (see below), whose sum is σ = 15801616. Its totient is φ = 11851200.

The previous prime is 13826401. The next prime is 13826447. The reversal of 13826407 is 70462831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70462831 = 1019 ⋅69149.

It is a cyclic number.

It is not a de Polignac number, because 13826407 - 2¹¹ = 13824359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13826401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 987594 + ... + 987607.

It is an arithmetic number, because the mean of its divisors is an integer number (3950404).

Almost surely, 2^13826407 is an apocalyptic number.

13826407 is a deficient number, since it is larger than the sum of its proper divisors (1975209).

13826407 is an equidigital number, since it uses as much as digits as its factorization.

13826407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975208.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 13826407 is about 3718.3876882326. The cubic root of 13826407 is about 240.0139285898.

The spelling of 13826407 in words is "thirteen million, eight hundred twenty-six thousand, four hundred seven".