4091313 has 4 divisors (see below), whose sum is σ = 5455088. Its totient is φ = 2727540.

The previous prime is 4091299. The next prime is 4091317. The reversal of 4091313 is 3131904.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4091313 - 2⁵ = 4091281 is a prime.

It is a D-number.

It is a Duffinian number.

4091313 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4091313.

It is not an unprimeable number, because it can be changed into a prime (4091317) 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, 681883 + ... + 681888.

It is an arithmetic number, because the mean of its divisors is an integer number (1363772).

Almost surely, 2^4091313 is an apocalyptic number.

It is an amenable number.

4091313 is a deficient number, since it is larger than the sum of its proper divisors (1363775).

4091313 is a wasteful number, since it uses less digits than its factorization.

4091313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363774.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 4091313 is about 2022.6994339249. The cubic root of 4091313 is about 159.9389480613.

The spelling of 4091313 in words is "four million, ninety-one thousand, three hundred thirteen".