84661427 has 2 divisors, whose sum is σ = 84661428. Its totient is φ = 84661426.

The previous prime is 84661391. The next prime is 84661463. The reversal of 84661427 is 72416648.

It is a balanced prime because it is at equal distance from previous prime (84661391) and next prime (84661463).

It is a cyclic number.

It is not a de Polignac number, because 84661427 - 2⁶ = 84661363 is a prime.

It is not a weakly prime, because it can be changed into another prime (84661487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42330713 + 42330714.

It is an arithmetic number, because the mean of its divisors is an integer number (42330714).

Almost surely, 2^84661427 is an apocalyptic number.

84661427 is a deficient number, since it is larger than the sum of its proper divisors (1).

84661427 is an equidigital number, since it uses as much as digits as its factorization.

84661427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 38.

The square root of 84661427 is about 9201.1644371786. The cubic root of 84661427 is about 439.0984069290.

The spelling of 84661427 in words is "eighty-four million, six hundred sixty-one thousand, four hundred twenty-seven".