83804947 has 2 divisors, whose sum is σ = 83804948. Its totient is φ = 83804946.

The previous prime is 83804927. The next prime is 83804999. The reversal of 83804947 is 74940838.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83804947 - 2¹¹ = 83802899 is a prime.

It is not a weakly prime, because it can be changed into another prime (83804927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41902473 + 41902474.

It is an arithmetic number, because the mean of its divisors is an integer number (41902474).

Almost surely, 2^83804947 is an apocalyptic number.

83804947 is a deficient number, since it is larger than the sum of its proper divisors (1).

83804947 is an equidigital number, since it uses as much as digits as its factorization.

83804947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 83804947 is about 9154.5041919265. The cubic root of 83804947 is about 437.6126677989.

The spelling of 83804947 in words is "eighty-three million, eight hundred four thousand, nine hundred forty-seven".