94424221 has 4 divisors (see below), whose sum is σ = 94847872. Its totient is φ = 94000572.

The previous prime is 94424219. The next prime is 94424263. The reversal of 94424221 is 12242449.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12242449 = 37 ⋅330877.

It is a cyclic number.

It is not a de Polignac number, because 94424221 - 2¹ = 94424219 is a prime.

It is a super-2 number, since 2×94424221² = 17831867022913682, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 94424221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94424021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211491 + ... + 211936.

It is an arithmetic number, because the mean of its divisors is an integer number (23711968).

Almost surely, 2^94424221 is an apocalyptic number.

It is an amenable number.

94424221 is a deficient number, since it is larger than the sum of its proper divisors (423651).

94424221 is a wasteful number, since it uses less digits than its factorization.

94424221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423650.

The product of its digits is 4608, while the sum is 28.

The square root of 94424221 is about 9717.2126147368. The cubic root of 94424221 is about 455.3665620718.

The spelling of 94424221 in words is "ninety-four million, four hundred twenty-four thousand, two hundred twenty-one".