2820937 has 4 divisors (see below), whose sum is σ = 3223936. Its totient is φ = 2417940.

The previous prime is 2820919. The next prime is 2820941. The reversal of 2820937 is 7390282.

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: 7390282 = 2 ⋅3695141.

It is not a de Polignac number, because 2820937 - 2⁷ = 2820809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2820899 and 2820908.

It is not an unprimeable number, because it can be changed into a prime (2820947) 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, 201489 + ... + 201502.

It is an arithmetic number, because the mean of its divisors is an integer number (805984).

2^2820937 is an apocalyptic number.

It is an amenable number.

2820937 is a deficient number, since it is larger than the sum of its proper divisors (402999).

2820937 is an equidigital number, since it uses as much as digits as its factorization.

2820937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402998.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 2820937 is about 1679.5645268938. The cubic root of 2820937 is about 141.2964104678.

The spelling of 2820937 in words is "two million, eight hundred twenty thousand, nine hundred thirty-seven".