89491727371 has 2 divisors, whose sum is σ = 89491727372. Its totient is φ = 89491727370.

The previous prime is 89491727363. The next prime is 89491727393. The reversal of 89491727371 is 17372719498.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89491727371 - 2³ = 89491727363 is a prime.

It is not a weakly prime, because it can be changed into another prime (89491727771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44745863685 + 44745863686.

It is an arithmetic number, because the mean of its divisors is an integer number (44745863686).

Almost surely, 2^89491727371 is an apocalyptic number.

89491727371 is a deficient number, since it is larger than the sum of its proper divisors (1).

89491727371 is an equidigital number, since it uses as much as digits as its factorization.

89491727371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5334336, while the sum is 58.

The spelling of 89491727371 in words is "eighty-nine billion, four hundred ninety-one million, seven hundred twenty-seven thousand, three hundred seventy-one".