11890705 has 8 divisors (see below), whose sum is σ = 14344704. Its totient is φ = 9462000.

The previous prime is 11890679. The next prime is 11890717. The reversal of 11890705 is 50709811.

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

It is not a de Polignac number, because 11890705 - 2⁵ = 11890673 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5271 + ... + 7180.

It is an arithmetic number, because the mean of its divisors is an integer number (1793088).

Almost surely, 2^11890705 is an apocalyptic number.

It is an amenable number.

11890705 is a deficient number, since it is larger than the sum of its proper divisors (2453999).

11890705 is a wasteful number, since it uses less digits than its factorization.

11890705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12647.

The product of its (nonzero) digits is 2520, while the sum is 31.

The square root of 11890705 is about 3448.2901560049. The cubic root of 11890705 is about 228.2456634440.

The spelling of 11890705 in words is "eleven million, eight hundred ninety thousand, seven hundred five".