89821490 has 16 divisors (see below), whose sum is σ = 176376960. Its totient is φ = 32662320.

The previous prime is 89821481. The next prime is 89821513. The reversal of 89821490 is 9412898.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 408170 + ... + 408389.

It is an arithmetic number, because the mean of its divisors is an integer number (11023560).

Almost surely, 2^89821490 is an apocalyptic number.

89821490 is a deficient number, since it is larger than the sum of its proper divisors (86555470).

89821490 is a wasteful number, since it uses less digits than its factorization.

89821490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816577.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 89821490 is about 9477.4200075759. The cubic root of 89821490 is about 447.8439913049.

The spelling of 89821490 in words is "eighty-nine million, eight hundred twenty-one thousand, four hundred ninety".