84674897 has 2 divisors, whose sum is σ = 84674898. Its totient is φ = 84674896.

The previous prime is 84674879. The next prime is 84674899. The reversal of 84674897 is 79847648.

Together with previous prime (84674879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70829056 + 13845841 = 8416^2 + 3721^2 .

It is a cyclic number.

It is not a de Polignac number, because 84674897 - 2⁸ = 84674641 is a prime.

Together with 84674899, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84674899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42337448 + 42337449.

It is an arithmetic number, because the mean of its divisors is an integer number (42337449).

Almost surely, 2^84674897 is an apocalyptic number.

It is an amenable number.

84674897 is a deficient number, since it is larger than the sum of its proper divisors (1).

84674897 is an equidigital number, since it uses as much as digits as its factorization.

84674897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2709504, while the sum is 53.

The square root of 84674897 is about 9201.8963806381. The cubic root of 84674897 is about 439.1216931807.

The spelling of 84674897 in words is "eighty-four million, six hundred seventy-four thousand, eight hundred ninety-seven".