3086213 has 4 divisors (see below), whose sum is σ = 3323628. Its totient is φ = 2848800.

The previous prime is 3086191. The next prime is 3086219. The reversal of 3086213 is 3126803.

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

It can be written as a sum of positive squares in 2 ways, for example, as 134689 + 2951524 = 367^2 + 1718^2 .

It is a cyclic number.

It is not a de Polignac number, because 3086213 - 2¹⁰ = 3085189 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 (3086219) 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, 118688 + ... + 118713.

It is an arithmetic number, because the mean of its divisors is an integer number (830907).

Almost surely, 2^3086213 is an apocalyptic number.

It is an amenable number.

3086213 is a deficient number, since it is larger than the sum of its proper divisors (237415).

3086213 is a wasteful number, since it uses less digits than its factorization.

3086213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237414.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 3086213 is about 1756.7620783703. The cubic root of 3086213 is about 145.5934929719.

The spelling of 3086213 in words is "three million, eighty-six thousand, two hundred thirteen".