22671971 has 4 divisors (see below), whose sum is σ = 25910832. Its totient is φ = 19433112.

The previous prime is 22671967. The next prime is 22671991. The reversal of 22671971 is 17917622.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22671971 - 2² = 22671967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22671911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1619420 + ... + 1619433.

It is an arithmetic number, because the mean of its divisors is an integer number (6477708).

Almost surely, 2^22671971 is an apocalyptic number.

22671971 is a deficient number, since it is larger than the sum of its proper divisors (3238861).

22671971 is an equidigital number, since it uses as much as digits as its factorization.

22671971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3238860.

The product of its digits is 10584, while the sum is 35.

The square root of 22671971 is about 4761.5093195330. The cubic root of 22671971 is about 283.0282324383.

The spelling of 22671971 in words is "twenty-two million, six hundred seventy-one thousand, nine hundred seventy-one".