4394621 has 8 divisors (see below), whose sum is σ = 5479104. Its totient is φ = 3424320.

The previous prime is 4394617. The next prime is 4394627. The reversal of 4394621 is 1264934.

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 4394621 - 2² = 4394617 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 4⁷ + 3¹¹ + 9⁴ + 4¹¹ + 6³ + 2³ + 1 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4394627) 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, 28460 + ... + 28613.

It is an arithmetic number, because the mean of its divisors is an integer number (684888).

Almost surely, 2^4394621 is an apocalyptic number.

It is an amenable number.

4394621 is a deficient number, since it is larger than the sum of its proper divisors (1084483).

4394621 is a wasteful number, since it uses less digits than its factorization.

4394621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57091.

The product of its digits is 5184, while the sum is 29.

The square root of 4394621 is about 2096.3351354209. The cubic root of 4394621 is about 163.7974522074.

The spelling of 4394621 in words is "four million, three hundred ninety-four thousand, six hundred twenty-one".