83780003 has 2 divisors, whose sum is σ = 83780004. Its totient is φ = 83780002.

The previous prime is 83779999. The next prime is 83780009. The reversal of 83780003 is 30008738.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83780003 - 2² = 83779999 is a prime.

It is not a weakly prime, because it can be changed into another prime (83780009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41890001 + 41890002.

It is an arithmetic number, because the mean of its divisors is an integer number (41890002).

Almost surely, 2^83780003 is an apocalyptic number.

83780003 is a deficient number, since it is larger than the sum of its proper divisors (1).

83780003 is an equidigital number, since it uses as much as digits as its factorization.

83780003 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 29.

The square root of 83780003 is about 9153.1417010773. The cubic root of 83780003 is about 437.5692459646.

The spelling of 83780003 in words is "eighty-three million, seven hundred eighty thousand, three".