3420591 has 4 divisors (see below), whose sum is σ = 4560792. Its totient is φ = 2280392.

The previous prime is 3420581. The next prime is 3420601. The reversal of 3420591 is 1950243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1950243 = 3 ⋅650081.

It is an interprime number because it is at equal distance from previous prime (3420581) and next prime (3420601).

It is a cyclic number.

It is not a de Polignac number, because 3420591 - 2¹⁵ = 3387823 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420581) 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, 570096 + ... + 570101.

It is an arithmetic number, because the mean of its divisors is an integer number (1140198).

Almost surely, 2^3420591 is an apocalyptic number.

3420591 is a deficient number, since it is larger than the sum of its proper divisors (1140201).

3420591 is a wasteful number, since it uses less digits than its factorization.

3420591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140200.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 3420591 is about 1849.4839820880. The cubic root of 3420591 is about 150.6724035415.

The spelling of 3420591 in words is "three million, four hundred twenty thousand, five hundred ninety-one".