89876491 has 2 divisors, whose sum is σ = 89876492. Its totient is φ = 89876490.

The previous prime is 89876473. The next prime is 89876497. The reversal of 89876491 is 19467898.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89876491 - 2⁵ = 89876459 is a prime.

It is not a weakly prime, because it can be changed into another prime (89876497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44938245 + 44938246.

It is an arithmetic number, because the mean of its divisors is an integer number (44938246).

Almost surely, 2^89876491 is an apocalyptic number.

89876491 is a deficient number, since it is larger than the sum of its proper divisors (1).

89876491 is an equidigital number, since it uses as much as digits as its factorization.

89876491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 52.

The square root of 89876491 is about 9480.3212498311. The cubic root of 89876491 is about 447.9353830992.

The spelling of 89876491 in words is "eighty-nine million, eight hundred seventy-six thousand, four hundred ninety-one".