89740087847 has 2 divisors, whose sum is σ = 89740087848. Its totient is φ = 89740087846.

The previous prime is 89740087831. The next prime is 89740087889. The reversal of 89740087847 is 74878004798.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89740087847 - 2⁴ = 89740087831 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89740087847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89740083847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44870043923 + 44870043924.

It is an arithmetic number, because the mean of its divisors is an integer number (44870043924).

Almost surely, 2^89740087847 is an apocalyptic number.

89740087847 is a deficient number, since it is larger than the sum of its proper divisors (1).

89740087847 is an equidigital number, since it uses as much as digits as its factorization.

89740087847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25288704, while the sum is 62.

The spelling of 89740087847 in words is "eighty-nine billion, seven hundred forty million, eighty-seven thousand, eight hundred forty-seven".