6456403 has 2 divisors, whose sum is σ = 6456404. Its totient is φ = 6456402.

The previous prime is 6456391. The next prime is 6456419. The reversal of 6456403 is 3046546.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6456403 is a prime.

It is not a weakly prime, because it can be changed into another prime (6454403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3228201 + 3228202.

It is an arithmetic number, because the mean of its divisors is an integer number (3228202).

Almost surely, 2^6456403 is an apocalyptic number.

6456403 is a deficient number, since it is larger than the sum of its proper divisors (1).

6456403 is an equidigital number, since it uses as much as digits as its factorization.

6456403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 6456403 is about 2540.9452965383. The cubic root of 6456403 is about 186.2073745975.

It can be divided in two parts, 6456 and 403, that added together give a cube (6859 = 19³).

The spelling of 6456403 in words is "six million, four hundred fifty-six thousand, four hundred three".