2920403 has 2 divisors, whose sum is σ = 2920404. Its totient is φ = 2920402.

The previous prime is 2920399. The next prime is 2920409. The reversal of 2920403 is 3040292.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2920403 - 2² = 2920399 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2920409) 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 as a sum of consecutive naturals, namely, 1460201 + 1460202.

It is an arithmetic number, because the mean of its divisors is an integer number (1460202).

2^2920403 is an apocalyptic number.

2920403 is a deficient number, since it is larger than the sum of its proper divisors (1).

2920403 is an equidigital number, since it uses as much as digits as its factorization.

2920403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2920403 is about 1708.9186639510. The cubic root of 2920403 is about 142.9379651704.

Adding to 2920403 its reverse (3040292), we get a palindrome (5960695).

The spelling of 2920403 in words is "two million, nine hundred twenty thousand, four hundred three".