84674917 has 2 divisors, whose sum is σ = 84674918. Its totient is φ = 84674916.

The previous prime is 84674903. The next prime is 84674923. The reversal of 84674917 is 71947648.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67914081 + 16760836 = 8241^2 + 4094^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84674917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84674927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42337458 + 42337459.

It is an arithmetic number, because the mean of its divisors is an integer number (42337459).

Almost surely, 2^84674917 is an apocalyptic number.

It is an amenable number.

84674917 is a deficient number, since it is larger than the sum of its proper divisors (1).

84674917 is an equidigital number, since it uses as much as digits as its factorization.

84674917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 46.

The square root of 84674917 is about 9201.8974673705. The cubic root of 84674917 is about 439.1217277539.

The spelling of 84674917 in words is "eighty-four million, six hundred seventy-four thousand, nine hundred seventeen".