2072813 has 4 divisors (see below), whose sum is σ = 2088768. Its totient is φ = 2056860.

The previous prime is 2072809. The next prime is 2072821. The reversal of 2072813 is 3182702.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3182702 = 2 ⋅1591351.

It is a cyclic number.

It is not a de Polignac number, because 2072813 - 2² = 2072809 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 (2072893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7781 + ... + 8042.

It is an arithmetic number, because the mean of its divisors is an integer number (522192).

2^2072813 is an apocalyptic number.

It is an amenable number.

2072813 is a deficient number, since it is larger than the sum of its proper divisors (15955).

2072813 is a wasteful number, since it uses less digits than its factorization.

2072813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15954.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 2072813 is about 1439.7267101780. The cubic root of 2072813 is about 127.5028936931.

The spelling of 2072813 in words is "two million, seventy-two thousand, eight hundred thirteen".