11699955 has 24 divisors (see below), whose sum is σ = 20830992. Its totient is φ = 6070464.

The previous prime is 11699921. The next prime is 11699957. The reversal of 11699955 is 55999611.

It is a happy number.

It is not a de Polignac number, because 11699955 - 2¹⁴ = 11683571 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 11699955.

It is not an unprimeable number, because it can be changed into a prime (11699957) 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 23 ways as a sum of consecutive naturals, for example, 1849 + ... + 5178.

It is an arithmetic number, because the mean of its divisors is an integer number (867958).

Almost surely, 2^11699955 is an apocalyptic number.

11699955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11699955 is a deficient number, since it is larger than the sum of its proper divisors (9131037).

11699955 is a wasteful number, since it uses less digits than its factorization.

11699955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7075 (or 7072 counting only the distinct ones).

The product of its digits is 109350, while the sum is 45.

The square root of 11699955 is about 3420.5196973559. The cubic root of 11699955 is about 227.0185770147.

The spelling of 11699955 in words is "eleven million, six hundred ninety-nine thousand, nine hundred fifty-five".