89537021 has 16 divisors (see below), whose sum is σ = 107888640. Its totient is φ = 72681840.

The previous prime is 89536969. The next prime is 89537023. The reversal of 89537021 is 12073598.

It is not a de Polignac number, because 89537021 - 2¹⁰ = 89535997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89537023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5810 + ... + 14588.

It is an arithmetic number, because the mean of its divisors is an integer number (6743040).

Almost surely, 2^89537021 is an apocalyptic number.

It is an amenable number.

89537021 is a deficient number, since it is larger than the sum of its proper divisors (18351619).

89537021 is a wasteful number, since it uses less digits than its factorization.

89537021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8864.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 89537021 is about 9462.4003825668. The cubic root of 89537021 is about 447.3707101295.

The spelling of 89537021 in words is "eighty-nine million, five hundred thirty-seven thousand, twenty-one".