11890037 has 4 divisors (see below), whose sum is σ = 11907936. Its totient is φ = 11872140.

The previous prime is 11890031. The next prime is 11890049. The reversal of 11890037 is 73009811.

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, and also an emirpimes, since its reverse is a distinct semiprime: 73009811 = 7 ⋅10429973.

It is a cyclic number.

It is not a de Polignac number, because 11890037 - 2¹⁸ = 11627893 is a prime.

It is a super-2 number, since 2×11890037² = 282745959722738, 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 = 11889991 and 11890009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11890031) 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, 7913 + ... + 9294.

It is an arithmetic number, because the mean of its divisors is an integer number (2976984).

Almost surely, 2^11890037 is an apocalyptic number.

It is an amenable number.

11890037 is a deficient number, since it is larger than the sum of its proper divisors (17899).

11890037 is an equidigital number, since it uses as much as digits as its factorization.

11890037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17898.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 11890037 is about 3448.1932950460. The cubic root of 11890037 is about 228.2413892102.

Adding to 11890037 its reverse (73009811), we get a palindrome (84899848).

The spelling of 11890037 in words is "eleven million, eight hundred ninety thousand, thirty-seven".