84454637 has 2 divisors, whose sum is σ = 84454638. Its totient is φ = 84454636.

The previous prime is 84454631. The next prime is 84454651. The reversal of 84454637 is 73645448.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79192201 + 5262436 = 8899^2 + 2294^2 .

It is a cyclic number.

It is not a de Polignac number, because 84454637 - 2¹⁴ = 84438253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84454594 and 84454603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84454631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42227318 + 42227319.

It is an arithmetic number, because the mean of its divisors is an integer number (42227319).

Almost surely, 2^84454637 is an apocalyptic number.

It is an amenable number.

84454637 is a deficient number, since it is larger than the sum of its proper divisors (1).

84454637 is an equidigital number, since it uses as much as digits as its factorization.

84454637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 41.

The square root of 84454637 is about 9189.9204022668. The cubic root of 84454637 is about 438.7406084520.

The spelling of 84454637 in words is "eighty-four million, four hundred fifty-four thousand, six hundred thirty-seven".