11899371 has 16 divisors (see below), whose sum is σ = 18327168. Its totient is φ = 6787200.

The previous prime is 11899369. The next prime is 11899379. The reversal of 11899371 is 17399811.

It is not a de Polignac number, because 11899371 - 2¹ = 11899369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11899379) 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, 10045 + ... + 11166.

It is an arithmetic number, because the mean of its divisors is an integer number (1145448).

Almost surely, 2^11899371 is an apocalyptic number.

11899371 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11899371 is a deficient number, since it is larger than the sum of its proper divisors (6427797).

11899371 is a wasteful number, since it uses less digits than its factorization.

11899371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21242.

The product of its digits is 13608, while the sum is 39.

The square root of 11899371 is about 3449.5464919319. The cubic root of 11899371 is about 228.3010988056.

The spelling of 11899371 in words is "eleven million, eight hundred ninety-nine thousand, three hundred seventy-one".