11899493 has 4 divisors (see below), whose sum is σ = 11906400. Its totient is φ = 11892588.

The previous prime is 11899477. The next prime is 11899513. The reversal of 11899493 is 39499811.

11899493 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11899493 - 2⁴ = 11899477 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 (11899403) 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, 1496 + ... + 5102.

It is an arithmetic number, because the mean of its divisors is an integer number (2976600).

Almost surely, 2^11899493 is an apocalyptic number.

It is an amenable number.

11899493 is a deficient number, since it is larger than the sum of its proper divisors (6907).

11899493 is an equidigital number, since it uses as much as digits as its factorization.

11899493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6906.

The product of its digits is 69984, while the sum is 44.

The square root of 11899493 is about 3449.5641753706. The cubic root of 11899493 is about 228.3018790328.

The spelling of 11899493 in words is "eleven million, eight hundred ninety-nine thousand, four hundred ninety-three".