11992995 has 80 divisors (see below), whose sum is σ = 25545120. Its totient is φ = 5334336.

The previous prime is 11992993. The next prime is 11993039. The reversal of 11992995 is 59929911.

It is not a de Polignac number, because 11992995 - 2¹ = 11992993 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 11992995.

It is not an unprimeable number, because it can be changed into a prime (11992993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 324117 + ... + 324153.

It is an arithmetic number, because the mean of its divisors is an integer number (319314).

Almost surely, 2^11992995 is an apocalyptic number.

11992995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11992995 is an abundant number, since it is smaller than the sum of its proper divisors (13552125).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11992995 is an frugal number, since it uses more digits than its factorization.

11992995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 52 counting only the distinct ones).

The product of its digits is 65610, while the sum is 45.

The square root of 11992995 is about 3463.0903828806. The cubic root of 11992995 is about 228.8982913769.

The spelling of 11992995 in words is "eleven million, nine hundred ninety-two thousand, nine hundred ninety-five".