89723191963 has 2 divisors, whose sum is σ = 89723191964. Its totient is φ = 89723191962.

The previous prime is 89723191927. The next prime is 89723191993. The reversal of 89723191963 is 36919132798.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89723191963 - 2¹⁷ = 89723060891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 89723191898 and 89723191907.

It is not a weakly prime, because it can be changed into another prime (89723191993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44861595981 + 44861595982.

It is an arithmetic number, because the mean of its divisors is an integer number (44861595982).

Almost surely, 2^89723191963 is an apocalyptic number.

89723191963 is a deficient number, since it is larger than the sum of its proper divisors (1).

89723191963 is an equidigital number, since it uses as much as digits as its factorization.

89723191963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4408992, while the sum is 58.

The spelling of 89723191963 in words is "eighty-nine billion, seven hundred twenty-three million, one hundred ninety-one thousand, nine hundred sixty-three".