43221667 has 8 divisors (see below), whose sum is σ = 46881072. Its totient is φ = 39686400.

The previous prime is 43221653. The next prime is 43221677. The reversal of 43221667 is 76612234.

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

It is a cyclic number.

It is not a de Polignac number, because 43221667 - 2¹⁹ = 42697379 is a prime.

It is a super-2 number, since 2×43221667² = 3736224996517778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43221677) 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 7 ways as a sum of consecutive naturals, for example, 30309 + ... + 31702.

It is an arithmetic number, because the mean of its divisors is an integer number (5860134).

Almost surely, 2^43221667 is an apocalyptic number.

43221667 is a deficient number, since it is larger than the sum of its proper divisors (3659405).

43221667 is a wasteful number, since it uses less digits than its factorization.

43221667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62069.

The product of its digits is 12096, while the sum is 31.

The square root of 43221667 is about 6574.3187479769. The cubic root of 43221667 is about 350.9407805332.

The spelling of 43221667 in words is "forty-three million, two hundred twenty-one thousand, six hundred sixty-seven".