13872403 has 2 divisors, whose sum is σ = 13872404. Its totient is φ = 13872402.

The previous prime is 13872361. The next prime is 13872421. The reversal of 13872403 is 30427831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13872403 - 2²¹ = 11775251 is a prime.

It is not a weakly prime, because it can be changed into another prime (13872433) 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, 6936201 + 6936202.

It is an arithmetic number, because the mean of its divisors is an integer number (6936202).

Almost surely, 2^13872403 is an apocalyptic number.

13872403 is a deficient number, since it is larger than the sum of its proper divisors (1).

13872403 is an equidigital number, since it uses as much as digits as its factorization.

13872403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 13872403 is about 3724.5674916693. The cubic root of 13872403 is about 240.2797836649.

The spelling of 13872403 in words is "thirteen million, eight hundred seventy-two thousand, four hundred three".