11992705 has 16 divisors (see below), whose sum is σ = 15523200. Its totient is φ = 8864640.

The previous prime is 11992703. The next prime is 11992709. The reversal of 11992705 is 50729911.

It is not a de Polignac number, because 11992705 - 2¹ = 11992703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11992703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2356 + ... + 5434.

It is an arithmetic number, because the mean of its divisors is an integer number (970200).

Almost surely, 2^11992705 is an apocalyptic number.

It is an amenable number.

11992705 is a deficient number, since it is larger than the sum of its proper divisors (3530495).

11992705 is a wasteful number, since it uses less digits than its factorization.

11992705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3144.

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 11992705 is about 3463.0485125103. The cubic root of 11992705 is about 228.8964463821.

The spelling of 11992705 in words is "eleven million, nine hundred ninety-two thousand, seven hundred five".