11801399 has 8 divisors (see below), whose sum is σ = 12257952. Its totient is φ = 11352960.

The previous prime is 11801353. The next prime is 11801401. The reversal of 11801399 is 99310811.

11801399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-11801399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11801329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1022 + ... + 4964.

It is an arithmetic number, because the mean of its divisors is an integer number (1532244).

Almost surely, 2^11801399 is an apocalyptic number.

11801399 is a deficient number, since it is larger than the sum of its proper divisors (456553).

11801399 is an equidigital number, since it uses as much as digits as its factorization.

11801399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4057.

The product of its (nonzero) digits is 1944, while the sum is 32.

The square root of 11801399 is about 3435.3164337510. The cubic root of 11801399 is about 227.6728083631.

The spelling of 11801399 in words is "eleven million, eight hundred one thousand, three hundred ninety-nine".