89831674447 has 2 divisors, whose sum is σ = 89831674448. Its totient is φ = 89831674446.

The previous prime is 89831674423. The next prime is 89831674451. The reversal of 89831674447 is 74447613898.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89831674447 - 2¹⁹ = 89831150159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89831674477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44915837223 + 44915837224.

It is an arithmetic number, because the mean of its divisors is an integer number (44915837224).

Almost surely, 2^89831674447 is an apocalyptic number.

89831674447 is a deficient number, since it is larger than the sum of its proper divisors (1).

89831674447 is an equidigital number, since it uses as much as digits as its factorization.

89831674447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32514048, while the sum is 61.

The spelling of 89831674447 in words is "eighty-nine billion, eight hundred thirty-one million, six hundred seventy-four thousand, four hundred forty-seven".