2992813 has 4 divisors (see below), whose sum is σ = 3020380. Its totient is φ = 2965248.

The previous prime is 2992793. The next prime is 2992817. The reversal of 2992813 is 3182992.

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 956484 + 2036329 = 978^2 + 1427^2 .

It is a cyclic number.

It is not a de Polignac number, because 2992813 - 2¹³ = 2984621 is a prime.

It is a super-3 number, since 3×2992813³ = 80419246516473335391, which contains 333 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2992817) 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, 13620 + ... + 13837.

It is an arithmetic number, because the mean of its divisors is an integer number (755095).

2^2992813 is an apocalyptic number.

It is an amenable number.

2992813 is a deficient number, since it is larger than the sum of its proper divisors (27567).

2992813 is a wasteful number, since it uses less digits than its factorization.

2992813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27566.

The product of its digits is 7776, while the sum is 34.

The square root of 2992813 is about 1729.9748553086. The cubic root of 2992813 is about 144.1096932965.

The spelling of 2992813 in words is "two million, nine hundred ninety-two thousand, eight hundred thirteen".