4395491 has 4 divisors (see below), whose sum is σ = 4408872. Its totient is φ = 4382112.

The previous prime is 4395463. The next prime is 4395493. The reversal of 4395491 is 1945934.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1945934 = 2 ⋅972967.

It is a cyclic number.

It is not a de Polignac number, because 4395491 - 2⁶ = 4395427 is a prime.

It is a super-2 number, since 2×4395491² = 38640682262162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4395493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6185 + ... + 6858.

It is an arithmetic number, because the mean of its divisors is an integer number (1102218).

Almost surely, 2^4395491 is an apocalyptic number.

4395491 is a deficient number, since it is larger than the sum of its proper divisors (13381).

4395491 is a wasteful number, since it uses less digits than its factorization.

4395491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13380.

The product of its digits is 19440, while the sum is 35.

The square root of 4395491 is about 2096.5426301413. The cubic root of 4395491 is about 163.8082604493.

The spelling of 4395491 in words is "four million, three hundred ninety-five thousand, four hundred ninety-one".