84672859 has 2 divisors, whose sum is σ = 84672860. Its totient is φ = 84672858.

The previous prime is 84672857. The next prime is 84672871. The reversal of 84672859 is 95827648.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84672859 - 2¹ = 84672857 is a prime.

Together with 84672857, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (84672851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42336429 + 42336430.

It is an arithmetic number, because the mean of its divisors is an integer number (42336430).

Almost surely, 2^84672859 is an apocalyptic number.

84672859 is a deficient number, since it is larger than the sum of its proper divisors (1).

84672859 is an equidigital number, since it uses as much as digits as its factorization.

84672859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 49.

The square root of 84672859 is about 9201.7856419284. The cubic root of 84672859 is about 439.1181701484.

The spelling of 84672859 in words is "eighty-four million, six hundred seventy-two thousand, eight hundred fifty-nine".