4091379 has 4 divisors (see below), whose sum is σ = 5455176. Its totient is φ = 2727584.

The previous prime is 4091371. The next prime is 4091383. The reversal of 4091379 is 9731904.

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 4091379 - 2³ = 4091371 is a prime.

It is a D-number.

4091379 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4091371) 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, 681894 + ... + 681899.

It is an arithmetic number, because the mean of its divisors is an integer number (1363794).

Almost surely, 2^4091379 is an apocalyptic number.

4091379 is a deficient number, since it is larger than the sum of its proper divisors (1363797).

4091379 is a wasteful number, since it uses less digits than its factorization.

4091379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363796.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 4091379 is about 2022.7157486904. The cubic root of 4091379 is about 159.9398080878.

It can be divided in two parts, 40 and 91379, that added together give a palindrome (91419).

The spelling of 4091379 in words is "four million, ninety-one thousand, three hundred seventy-nine".