15798403 has 2 divisors, whose sum is σ = 15798404. Its totient is φ = 15798402.

The previous prime is 15798397. The next prime is 15798463. The reversal of 15798403 is 30489751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15798403 - 2⁹ = 15797891 is a prime.

It is not a weakly prime, because it can be changed into another prime (15798463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7899201 + 7899202.

It is an arithmetic number, because the mean of its divisors is an integer number (7899202).

Almost surely, 2^15798403 is an apocalyptic number.

15798403 is a deficient number, since it is larger than the sum of its proper divisors (1).

15798403 is an equidigital number, since it uses as much as digits as its factorization.

15798403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 15798403 is about 3974.7204933177. The cubic root of 15798403 is about 250.9214157995.

The spelling of 15798403 in words is "fifteen million, seven hundred ninety-eight thousand, four hundred three".