84638383 has 2 divisors, whose sum is σ = 84638384. Its totient is φ = 84638382.

The previous prime is 84638363. The next prime is 84638387. The reversal of 84638383 is 38383648.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84638383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84638387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42319191 + 42319192.

It is an arithmetic number, because the mean of its divisors is an integer number (42319192).

Almost surely, 2^84638383 is an apocalyptic number.

84638383 is a deficient number, since it is larger than the sum of its proper divisors (1).

84638383 is an equidigital number, since it uses as much as digits as its factorization.

84638383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 43.

The square root of 84638383 is about 9199.9121191455. The cubic root of 84638383 is about 439.0585639047.

The spelling of 84638383 in words is "eighty-four million, six hundred thirty-eight thousand, three hundred eighty-three".