4221703894 has 4 divisors (see below), whose sum is σ = 6332555844. Its totient is φ = 2110851946.

The previous prime is 4221703883. The next prime is 4221703919. The reversal of 4221703894 is 4983071224.

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

It is a super-2 number, since 2×4221703894² = 35645567537229526472, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055425972 + ... + 1055425975.

It is an arithmetic number, because the mean of its divisors is an integer number (1583138961).

Almost surely, 2^4221703894 is an apocalyptic number.

4221703894 is a deficient number, since it is larger than the sum of its proper divisors (2110851950).

4221703894 is a wasteful number, since it uses less digits than its factorization.

4221703894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110851949.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 4221703894 is about 64974.6403914635. The cubic root of 4221703894 is about 1616.2030537887.

The spelling of 4221703894 in words is "four billion, two hundred twenty-one million, seven hundred three thousand, eight hundred ninety-four".