89739458647 has 2 divisors, whose sum is σ = 89739458648. Its totient is φ = 89739458646.

The previous prime is 89739458629. The next prime is 89739458663. The reversal of 89739458647 is 74685493798.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89739458647 - 2¹⁵ = 89739425879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89739458947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44869729323 + 44869729324.

It is an arithmetic number, because the mean of its divisors is an integer number (44869729324).

Almost surely, 2^89739458647 is an apocalyptic number.

89739458647 is a deficient number, since it is larger than the sum of its proper divisors (1).

89739458647 is an equidigital number, since it uses as much as digits as its factorization.

89739458647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 365783040, while the sum is 70.

The spelling of 89739458647 in words is "eighty-nine billion, seven hundred thirty-nine million, four hundred fifty-eight thousand, six hundred forty-seven".