13890037 has 16 divisors (see below), whose sum is σ = 16941312. Its totient is φ = 11116800.

The previous prime is 13890031. The next prime is 13890113. The reversal of 13890037 is 73009831.

It is a cyclic number.

It is not a de Polignac number, because 13890037 - 2³ = 13890029 is a prime.

It is a super-2 number, since 2×13890037² = 385866255722738, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13889990 and 13890008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13890031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17583 + ... + 18355.

It is an arithmetic number, because the mean of its divisors is an integer number (1058832).

Almost surely, 2^13890037 is an apocalyptic number.

13890037 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13890037 is a deficient number, since it is larger than the sum of its proper divisors (3051275).

13890037 is a wasteful number, since it uses less digits than its factorization.

13890037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 13890037 is about 3726.9339945859. The cubic root of 13890037 is about 240.3815516531.

Adding to 13890037 its reverse (73009831), we get a palindrome (86899868).

The spelling of 13890037 in words is "thirteen million, eight hundred ninety thousand, thirty-seven".