84852139 has 2 divisors, whose sum is σ = 84852140. Its totient is φ = 84852138.

The previous prime is 84852127. The next prime is 84852143. The reversal of 84852139 is 93125848.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84852139 - 2⁵ = 84852107 is a prime.

It is not a weakly prime, because it can be changed into another prime (84852149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42426069 + 42426070.

It is an arithmetic number, because the mean of its divisors is an integer number (42426070).

Almost surely, 2^84852139 is an apocalyptic number.

84852139 is a deficient number, since it is larger than the sum of its proper divisors (1).

84852139 is an equidigital number, since it uses as much as digits as its factorization.

84852139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 40.

The square root of 84852139 is about 9211.5220783538. The cubic root of 84852139 is about 439.4278703661.

The spelling of 84852139 in words is "eighty-four million, eight hundred fifty-two thousand, one hundred thirty-nine".