4391457 has 16 divisors (see below), whose sum is σ = 7085952. Its totient is φ = 2361600.

The previous prime is 4391449. The next prime is 4391483. The reversal of 4391457 is 7541934.

It is not a de Polignac number, because 4391457 - 2³ = 4391449 is a prime.

It is a d-powerful number, because it can be written as 4³ + 3¹¹ + 9 + 1 + 4¹¹ + 5⁵ + 7⁵ .

It is not an unprimeable number, because it can be changed into a prime (4391417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5794 + ... + 6507.

It is an arithmetic number, because the mean of its divisors is an integer number (442872).

Almost surely, 2^4391457 is an apocalyptic number.

It is an amenable number.

4391457 is a deficient number, since it is larger than the sum of its proper divisors (2694495).

4391457 is a wasteful number, since it uses less digits than its factorization.

4391457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12328.

The product of its digits is 15120, while the sum is 33.

The square root of 4391457 is about 2095.5803492112. The cubic root of 4391457 is about 163.7581329605.

The spelling of 4391457 in words is "four million, three hundred ninety-one thousand, four hundred fifty-seven".