4221649997 has 8 divisors (see below), whose sum is σ = 4319283072. Its totient is φ = 4124934000.

The previous prime is 4221649987. The next prime is 4221650009. The reversal of 4221649997 is 7999461224.

4221649997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 4221649997 - 2⁴ = 4221649981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221649937) 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, 219953 + ... + 238374.

It is an arithmetic number, because the mean of its divisors is an integer number (539910384).

Almost surely, 2^4221649997 is an apocalyptic number.

It is an amenable number.

4221649997 is a deficient number, since it is larger than the sum of its proper divisors (97633075).

4221649997 is a wasteful number, since it uses less digits than its factorization.

4221649997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458539.

The product of its digits is 1959552, while the sum is 53.

The square root of 4221649997 is about 64974.2256360166. The cubic root of 4221649997 is about 1616.1961759286.

The spelling of 4221649997 in words is "four billion, two hundred twenty-one million, six hundred forty-nine thousand, nine hundred ninety-seven".