5813021 has 8 divisors (see below), whose sum is σ = 6161400. Its totient is φ = 5474560.

The previous prime is 5813009. The next prime is 5813023. The reversal of 5813021 is 1203185.

It can be written as a sum of positive squares in 4 ways, for example, as 290521 + 5522500 = 539^2 + 2350^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5813021 - 2⁶ = 5812957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5812984 and 5813002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5813023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1256 + ... + 3633.

It is an arithmetic number, because the mean of its divisors is an integer number (770175).

Almost surely, 2^5813021 is an apocalyptic number.

It is an amenable number.

5813021 is a deficient number, since it is larger than the sum of its proper divisors (348379).

5813021 is a wasteful number, since it uses less digits than its factorization.

5813021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4959.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 5813021 is about 2411.0207381937. The cubic root of 5813021 is about 179.8045306069.

The spelling of 5813021 in words is "five million, eight hundred thirteen thousand, twenty-one".