22747071 has 16 divisors (see below), whose sum is σ = 32210784. Its totient is φ = 14229504.

The previous prime is 22747061. The next prime is 22747073. The reversal of 22747071 is 17074722.

It is not a de Polignac number, because 22747071 - 2⁶ = 22747007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22747073) 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 15 ways as a sum of consecutive naturals, for example, 29041 + ... + 29813.

It is an arithmetic number, because the mean of its divisors is an integer number (2013174).

Almost surely, 2^22747071 is an apocalyptic number.

22747071 is a deficient number, since it is larger than the sum of its proper divisors (9463713).

22747071 is a wasteful number, since it uses less digits than its factorization.

22747071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370.

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 22747071 is about 4769.3889545727. The cubic root of 22747071 is about 283.3403945953.

The spelling of 22747071 in words is "twenty-two million, seven hundred forty-seven thousand, seventy-one".