13801837 has 4 divisors (see below), whose sum is σ = 15773536. Its totient is φ = 11830140.

The previous prime is 13801787. The next prime is 13801849. The reversal of 13801837 is 73810831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13801837 - 2²³ = 5413229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13801799 and 13801808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13801867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 985839 + ... + 985852.

It is an arithmetic number, because the mean of its divisors is an integer number (3943384).

Almost surely, 2^13801837 is an apocalyptic number.

It is an amenable number.

13801837 is a deficient number, since it is larger than the sum of its proper divisors (1971699).

13801837 is an equidigital number, since it uses as much as digits as its factorization.

13801837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971698.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 13801837 is about 3715.0823678621. The cubic root of 13801837 is about 239.8716732948.

The spelling of 13801837 in words is "thirteen million, eight hundred one thousand, eight hundred thirty-seven".