80978003 has 2 divisors, whose sum is σ = 80978004. Its totient is φ = 80978002.

The previous prime is 80977999. The next prime is 80978017. The reversal of 80978003 is 30087908.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80978003 - 2² = 80977999 is a prime.

It is not a weakly prime, because it can be changed into another prime (80978033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40489001 + 40489002.

It is an arithmetic number, because the mean of its divisors is an integer number (40489002).

Almost surely, 2^80978003 is an apocalyptic number.

80978003 is a deficient number, since it is larger than the sum of its proper divisors (1).

80978003 is an equidigital number, since it uses as much as digits as its factorization.

80978003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 80978003 is about 8998.7778614654. Note that the first 3 decimals coincide. The cubic root of 80978003 is about 432.6357006773.

The spelling of 80978003 in words is "eighty million, nine hundred seventy-eight thousand, three".