11699989 has 8 divisors (see below), whose sum is σ = 13803008. Its totient is φ = 9704880.

The previous prime is 11699971. The next prime is 11699993. The reversal of 11699989 is 98999611.

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

It is a cyclic number.

It is not a de Polignac number, because 11699989 - 2⁵ = 11699957 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 (11699959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26742 + ... + 27175.

It is an arithmetic number, because the mean of its divisors is an integer number (1725376).

Almost surely, 2^11699989 is an apocalyptic number.

It is an amenable number.

11699989 is a deficient number, since it is larger than the sum of its proper divisors (2103019).

11699989 is an equidigital number, since it uses as much as digits as its factorization.

11699989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53955.

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

The square root of 11699989 is about 3420.5246673573. The cubic root of 11699989 is about 227.0187969194.

The spelling of 11699989 in words is "eleven million, six hundred ninety-nine thousand, nine hundred eighty-nine".