4396091 has 4 divisors (see below), whose sum is σ = 5024112. Its totient is φ = 3768072.

The previous prime is 4396069. The next prime is 4396097. The reversal of 4396091 is 1906934.

Added to its reverse (1906934) it gives a triangular number (6303025 = T₃₅₅₀).

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

It is not a de Polignac number, because 4396091 - 2⁶ = 4396027 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4396097) 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, 314000 + ... + 314013.

It is an arithmetic number, because the mean of its divisors is an integer number (1256028).

Almost surely, 2^4396091 is an apocalyptic number.

4396091 is a deficient number, since it is larger than the sum of its proper divisors (628021).

4396091 is an equidigital number, since it uses as much as digits as its factorization.

4396091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628020.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 4396091 is about 2096.6857179845. The cubic root of 4396091 is about 163.8157135783.

Adding to 4396091 its reverse (1906934), we get a triangular number (6303025 = T₃₅₅₀).

The spelling of 4396091 in words is "four million, three hundred ninety-six thousand, ninety-one".