84496609 has 2 divisors, whose sum is σ = 84496610. Its totient is φ = 84496608.

The previous prime is 84496597. The next prime is 84496619. The reversal of 84496609 is 90669448.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68013009 + 16483600 = 8247^2 + 4060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84496609 is a prime.

It is not a weakly prime, because it can be changed into another prime (84496619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42248304 + 42248305.

It is an arithmetic number, because the mean of its divisors is an integer number (42248305).

Almost surely, 2^84496609 is an apocalyptic number.

It is an amenable number.

84496609 is a deficient number, since it is larger than the sum of its proper divisors (1).

84496609 is an equidigital number, since it uses as much as digits as its factorization.

84496609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 84496609 is about 9192.2037074904. The cubic root of 84496609 is about 438.8132777245.

The spelling of 84496609 in words is "eighty-four million, four hundred ninety-six thousand, six hundred nine".