80399403 has 24 divisors (see below), whose sum is σ = 134905056. Its totient is φ = 45187200.

The previous prime is 80399377. The next prime is 80399411. The reversal of 80399403 is 30499308.

It is not a de Polignac number, because 80399403 - 2⁸ = 80399147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80399453) 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 in 23 ways as a sum of consecutive naturals, for example, 6618 + ... + 14303.

It is an arithmetic number, because the mean of its divisors is an integer number (5621044).

Almost surely, 2^80399403 is an apocalyptic number.

80399403 is a deficient number, since it is larger than the sum of its proper divisors (54505653).

80399403 is a wasteful number, since it uses less digits than its factorization.

80399403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20995 (or 20992 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 80399403 is about 8966.5714183293. The cubic root of 80399403 is about 431.6028210326.

The spelling of 80399403 in words is "eighty million, three hundred ninety-nine thousand, four hundred three".