4221608 has 8 divisors (see below), whose sum is σ = 7915530. Its totient is φ = 2110800.

The previous prime is 4221583. The next prime is 4221619. The reversal of 4221608 is 8061224.

It can be written as a sum of positive squares in only one way, i.e., 2256004 + 1965604 = 1502^2 + 1402^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263843 + ... + 263858.

Almost surely, 2^4221608 is an apocalyptic number.

It is an amenable number.

4221608 is a deficient number, since it is larger than the sum of its proper divisors (3693922).

4221608 is a wasteful number, since it uses less digits than its factorization.

4221608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527707 (or 527703 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 4221608 is about 2054.6552022176. The cubic root of 4221608 is about 161.6190816601.

The spelling of 4221608 in words is "four million, two hundred twenty-one thousand, six hundred eight".