13899803 has 2 divisors, whose sum is σ = 13899804. Its totient is φ = 13899802.

The previous prime is 13899799. The next prime is 13899839. The reversal of 13899803 is 30899831.

It is a weak prime.

It is an emirp because it is prime and its reverse (30899831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13899803 - 2² = 13899799 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13899503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6949901 + 6949902.

It is an arithmetic number, because the mean of its divisors is an integer number (6949902).

Almost surely, 2^13899803 is an apocalyptic number.

13899803 is a deficient number, since it is larger than the sum of its proper divisors (1).

13899803 is an equidigital number, since it uses as much as digits as its factorization.

13899803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 13899803 is about 3728.2439566101. The cubic root of 13899803 is about 240.4378753874.

The spelling of 13899803 in words is "thirteen million, eight hundred ninety-nine thousand, eight hundred three".