84231079 has 2 divisors, whose sum is σ = 84231080. Its totient is φ = 84231078.

The previous prime is 84231029. The next prime is 84231089. The reversal of 84231079 is 97013248.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84231079 - 2¹⁵ = 84198311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84231019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42115539 + 42115540.

It is an arithmetic number, because the mean of its divisors is an integer number (42115540).

Almost surely, 2^84231079 is an apocalyptic number.

84231079 is a deficient number, since it is larger than the sum of its proper divisors (1).

84231079 is an equidigital number, since it uses as much as digits as its factorization.

84231079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 84231079 is about 9177.7491249216. The cubic root of 84231079 is about 438.3531395132.

The spelling of 84231079 in words is "eighty-four million, two hundred thirty-one thousand, seventy-nine".