84950839 has 2 divisors, whose sum is σ = 84950840. Its totient is φ = 84950838.

The previous prime is 84950837. The next prime is 84950869. The reversal of 84950839 is 93805948.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84950839 - 2¹ = 84950837 is a prime.

Together with 84950837, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84950837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42475419 + 42475420.

It is an arithmetic number, because the mean of its divisors is an integer number (42475420).

Almost surely, 2^84950839 is an apocalyptic number.

84950839 is a deficient number, since it is larger than the sum of its proper divisors (1).

84950839 is an equidigital number, since it uses as much as digits as its factorization.

84950839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 84950839 is about 9216.8779421234. The cubic root of 84950839 is about 439.5981851654.

The spelling of 84950839 in words is "eighty-four million, nine hundred fifty thousand, eight hundred thirty-nine".