84797417 has 2 divisors, whose sum is σ = 84797418. Its totient is φ = 84797416.

The previous prime is 84797413. The next prime is 84797441. The reversal of 84797417 is 71479748.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60777616 + 24019801 = 7796^2 + 4901^2 .

It is a cyclic number.

It is not a de Polignac number, because 84797417 - 2² = 84797413 is a prime.

It is not a weakly prime, because it can be changed into another prime (84797413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42398708 + 42398709.

It is an arithmetic number, because the mean of its divisors is an integer number (42398709).

Almost surely, 2^84797417 is an apocalyptic number.

It is an amenable number.

84797417 is a deficient number, since it is larger than the sum of its proper divisors (1).

84797417 is an equidigital number, since it uses as much as digits as its factorization.

84797417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 395136, while the sum is 47.

The square root of 84797417 is about 9208.5512975712. The cubic root of 84797417 is about 439.3333862305. Note that the first 4 decimals are identical.

It can be divided in two parts, 8479741 and 7, that added together give a palindrome (8479748).

The spelling of 84797417 in words is "eighty-four million, seven hundred ninety-seven thousand, four hundred seventeen".