4789391 has 4 divisors (see below), whose sum is σ = 4918872. Its totient is φ = 4659912.

The previous prime is 4789381. The next prime is 4789399. The reversal of 4789391 is 1939874.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4789391 - 2²² = 595087 is a prime.

It is a d-powerful number, because it can be written as 4¹¹ + 7⁴ + 8 + 9⁵ + 3⁷ + 9⁶ + 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 (4789399) 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, 64685 + ... + 64758.

It is an arithmetic number, because the mean of its divisors is an integer number (1229718).

Almost surely, 2^4789391 is an apocalyptic number.

4789391 is a deficient number, since it is larger than the sum of its proper divisors (129481).

4789391 is a wasteful number, since it uses less digits than its factorization.

4789391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129480.

The product of its digits is 54432, while the sum is 41.

The square root of 4789391 is about 2188.4677288002. The cubic root of 4789391 is about 168.5621639277.

The spelling of 4789391 in words is "four million, seven hundred eighty-nine thousand, three hundred ninety-one".