83204789 has 2 divisors, whose sum is σ = 83204790. Its totient is φ = 83204788.

The previous prime is 83204773. The next prime is 83204791. The reversal of 83204789 is 98740238.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55726225 + 27478564 = 7465^2 + 5242^2 .

It is a cyclic number.

It is not a de Polignac number, because 83204789 - 2⁴ = 83204773 is a prime.

Together with 83204791, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83204389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41602394 + 41602395.

It is an arithmetic number, because the mean of its divisors is an integer number (41602395).

Almost surely, 2^83204789 is an apocalyptic number.

It is an amenable number.

83204789 is a deficient number, since it is larger than the sum of its proper divisors (1).

83204789 is an equidigital number, since it uses as much as digits as its factorization.

83204789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 83204789 is about 9121.6659114440. The cubic root of 83204789 is about 436.5655291543.

The spelling of 83204789 in words is "eighty-three million, two hundred four thousand, seven hundred eighty-nine".