84361859 has 2 divisors, whose sum is σ = 84361860. Its totient is φ = 84361858.

The previous prime is 84361847. The next prime is 84361867. The reversal of 84361859 is 95816348.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84361859 - 2⁸ = 84361603 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84361889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42180929 + 42180930.

It is an arithmetic number, because the mean of its divisors is an integer number (42180930).

Almost surely, 2^84361859 is an apocalyptic number.

84361859 is a deficient number, since it is larger than the sum of its proper divisors (1).

84361859 is an equidigital number, since it uses as much as digits as its factorization.

84361859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 44.

The square root of 84361859 is about 9184.8712021454. The cubic root of 84361859 is about 438.5798894655.

The spelling of 84361859 in words is "eighty-four million, three hundred sixty-one thousand, eight hundred fifty-nine".