2903493 has 4 divisors (see below), whose sum is σ = 3871328. Its totient is φ = 1935660.

The previous prime is 2903479. The next prime is 2903503. The reversal of 2903493 is 3943092.

2903493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is not a de Polignac number, because 2903493 - 2⁴ = 2903477 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

2903493 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2903493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2903443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 483913 + ... + 483918.

It is an arithmetic number, because the mean of its divisors is an integer number (967832).

2^2903493 is an apocalyptic number.

It is an amenable number.

2903493 is a deficient number, since it is larger than the sum of its proper divisors (967835).

2903493 is an equidigital number, since it uses as much as digits as its factorization.

2903493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967834.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 2903493 is about 1703.9639080685. The cubic root of 2903493 is about 142.6615465549.

The spelling of 2903493 in words is "two million, nine hundred three thousand, four hundred ninety-three".