98664491 has 8 divisors (see below), whose sum is σ = 101307024. Its totient is φ = 96033280.

The previous prime is 98664487. The next prime is 98664493. The reversal of 98664491 is 19446689.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 98664491 - 2² = 98664487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98664493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16571 + ... + 21723.

It is an arithmetic number, because the mean of its divisors is an integer number (12663378).

Almost surely, 2^98664491 is an apocalyptic number.

98664491 is a deficient number, since it is larger than the sum of its proper divisors (2642533).

98664491 is a wasteful number, since it uses less digits than its factorization.

98664491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5661.

The product of its digits is 373248, while the sum is 47.

The square root of 98664491 is about 9933.0001006745. Note that the first 3 decimals coincide. The cubic root of 98664491 is about 462.0833214288.

The spelling of 98664491 in words is "ninety-eight million, six hundred sixty-four thousand, four hundred ninety-one".