11982399 has 64 divisors (see below), whose sum is σ = 20901888. Its totient is φ = 5990400.

The previous prime is 11982371. The next prime is 11982401. The reversal of 11982399 is 99328911.

It is not a de Polignac number, because 11982399 - 2²³ = 3593791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11982399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11982319) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 226057 + ... + 226109.

It is an arithmetic number, because the mean of its divisors is an integer number (326592).

Almost surely, 2^11982399 is an apocalyptic number.

11982399 is a deficient number, since it is larger than the sum of its proper divisors (8919489).

11982399 is a wasteful number, since it uses less digits than its factorization.

11982399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128.

The product of its digits is 34992, while the sum is 42.

The square root of 11982399 is about 3461.5601973677. The cubic root of 11982399 is about 228.8308597653.

The spelling of 11982399 in words is "eleven million, nine hundred eighty-two thousand, three hundred ninety-nine".