89896432447 has 2 divisors, whose sum is σ = 89896432448. Its totient is φ = 89896432446.

The previous prime is 89896432421. The next prime is 89896432469. The reversal of 89896432447 is 74423469898.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89896432447 - 2⁷ = 89896432319 is a prime.

It is a super-3 number, since 3×89896432447³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89896432147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44948216223 + 44948216224.

It is an arithmetic number, because the mean of its divisors is an integer number (44948216224).

Almost surely, 2^89896432447 is an apocalyptic number.

89896432447 is a deficient number, since it is larger than the sum of its proper divisors (1).

89896432447 is an equidigital number, since it uses as much as digits as its factorization.

89896432447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 83607552, while the sum is 64.

The spelling of 89896432447 in words is "eighty-nine billion, eight hundred ninety-six million, four hundred thirty-two thousand, four hundred forty-seven".