11899699 has 8 divisors (see below), whose sum is σ = 13877600. Its totient is φ = 10199448.

The previous prime is 11899687. The next prime is 11899709. The reversal of 11899699 is 99699811.

It is not a de Polignac number, because 11899699 - 2¹⁹ = 11375411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11899399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17004 + ... + 17689.

It is an arithmetic number, because the mean of its divisors is an integer number (1734700).

Almost surely, 2^11899699 is an apocalyptic number.

11899699 is a deficient number, since it is larger than the sum of its proper divisors (1977901).

11899699 is an frugal number, since it uses more digits than its factorization.

11899699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34714 (or 34700 counting only the distinct ones).

The product of its digits is 314928, while the sum is 52.

The square root of 11899699 is about 3449.5940340858. The cubic root of 11899699 is about 228.3031964535.

The spelling of 11899699 in words is "eleven million, eight hundred ninety-nine thousand, six hundred ninety-nine".