2689403 has 2 divisors, whose sum is σ = 2689404. Its totient is φ = 2689402.

The previous prime is 2689399. The next prime is 2689411. The reversal of 2689403 is 3049862.

2689403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2689403 - 2² = 2689399 is a prime.

It is equal to p₁₉₅₉₁₇ and since 2689403 and 195917 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2689403.

It is not a weakly prime, because it can be changed into another prime (2689483) 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 as a sum of consecutive naturals, namely, 1344701 + 1344702.

It is an arithmetic number, because the mean of its divisors is an integer number (1344702).

2^2689403 is an apocalyptic number.

2689403 is a deficient number, since it is larger than the sum of its proper divisors (1).

2689403 is an equidigital number, since it uses as much as digits as its factorization.

2689403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 2689403 is about 1639.9399379246. The cubic root of 2689403 is about 139.0652523884.

The spelling of 2689403 in words is "two million, six hundred eighty-nine thousand, four hundred three".