84630893 has 2 divisors, whose sum is σ = 84630894. Its totient is φ = 84630892.

The previous prime is 84630853. The next prime is 84630907. The reversal of 84630893 is 39803648.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83576164 + 1054729 = 9142^2 + 1027^2 .

It is a cyclic number.

It is not a de Polignac number, because 84630893 - 2¹² = 84626797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84630893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84630853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42315446 + 42315447.

It is an arithmetic number, because the mean of its divisors is an integer number (42315447).

Almost surely, 2^84630893 is an apocalyptic number.

It is an amenable number.

84630893 is a deficient number, since it is larger than the sum of its proper divisors (1).

84630893 is an equidigital number, since it uses as much as digits as its factorization.

84630893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 84630893 is about 9199.5050410335. The cubic root of 84630893 is about 439.0456121542.

The spelling of 84630893 in words is "eighty-four million, six hundred thirty thousand, eight hundred ninety-three".