22705971 has 8 divisors (see below), whose sum is σ = 30444480. Its totient is φ = 15052392.

The previous prime is 22705913. The next prime is 22705979. The reversal of 22705971 is 17950722.

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

It is not a de Polignac number, because 22705971 - 2⁷ = 22705843 is a prime.

It is a super-2 number, since 2×22705971² = 1031122238105682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22705979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20605 + ... + 21678.

It is an arithmetic number, because the mean of its divisors is an integer number (3805560).

Almost surely, 2^22705971 is an apocalyptic number.

22705971 is a deficient number, since it is larger than the sum of its proper divisors (7738509).

22705971 is a wasteful number, since it uses less digits than its factorization.

22705971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42465.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 22705971 is about 4765.0782784756. The cubic root of 22705971 is about 283.1696427808.

The spelling of 22705971 in words is "twenty-two million, seven hundred five thousand, nine hundred seventy-one".