89040491 has 8 divisors (see below), whose sum is σ = 90478080. Its totient is φ = 87611752.

The previous prime is 89040473. The next prime is 89040503. The reversal of 89040491 is 19404098.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89040491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89040421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19790 + ... + 23868.

It is an arithmetic number, because the mean of its divisors is an integer number (11309760).

Almost surely, 2^89040491 is an apocalyptic number.

89040491 is a deficient number, since it is larger than the sum of its proper divisors (1437589).

89040491 is a wasteful number, since it uses less digits than its factorization.

89040491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4425.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 89040491 is about 9436.1269067346. The cubic root of 89040491 is about 446.5422079048.

The spelling of 89040491 in words is "eighty-nine million, forty thousand, four hundred ninety-one".