22706947 has 4 divisors (see below), whose sum is σ = 22716760. Its totient is φ = 22697136.

The previous prime is 22706933. The next prime is 22706963. The reversal of 22706947 is 74960722.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22706947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22706977) 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 3 ways as a sum of consecutive naturals, for example, 703 + ... + 6775.

It is an arithmetic number, because the mean of its divisors is an integer number (5679190).

Almost surely, 2^22706947 is an apocalyptic number.

22706947 is a deficient number, since it is larger than the sum of its proper divisors (9813).

22706947 is an equidigital number, since it uses as much as digits as its factorization.

22706947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9812.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 22706947 is about 4765.1806891240. The cubic root of 22706947 is about 283.1737000045.

It can be divided in two parts, 22706 and 947, that added together give a triangular number (23653 = T₂₁₇).

The spelling of 22706947 in words is "twenty-two million, seven hundred six thousand, nine hundred forty-seven".