4420657 has 8 divisors (see below), whose sum is σ = 4507776. Its totient is φ = 4334592.

The previous prime is 4420639. The next prime is 4420667. The reversal of 4420657 is 7560244.

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 4420657 - 2¹⁹ = 3896369 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 (4420607) 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, 17073 + ... + 17329.

It is an arithmetic number, because the mean of its divisors is an integer number (563472).

Almost surely, 2^4420657 is an apocalyptic number.

It is an amenable number.

4420657 is a deficient number, since it is larger than the sum of its proper divisors (87119).

4420657 is a wasteful number, since it uses less digits than its factorization.

4420657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 4420657 is about 2102.5358498727. The cubic root of 4420657 is about 164.1202890057.

The spelling of 4420657 in words is "four million, four hundred twenty thousand, six hundred fifty-seven".