8722164 has 36 divisors (see below), whose sum is σ = 22373792. Its totient is φ = 2642640.

The previous prime is 8722123. The next prime is 8722169. The reversal of 8722164 is 4612278.

It is a super-2 number, since 2×8722164² = 152152289685792, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8722169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1552 + ... + 4455.

Almost surely, 2^8722164 is an apocalyptic number.

It is an amenable number.

8722164 is an abundant number, since it is smaller than the sum of its proper divisors (13651628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8722164 is a wasteful number, since it uses less digits than its factorization.

8722164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6036 (or 6023 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 8722164 is about 2953.3310007515. The cubic root of 8722164 is about 205.8455183915.

The spelling of 8722164 in words is "eight million, seven hundred twenty-two thousand, one hundred sixty-four".