89021493 has 24 divisors (see below), whose sum is σ = 142380576. Its totient is φ = 53143200.

The previous prime is 89021489. The next prime is 89021507. The reversal of 89021493 is 39412098.

It is not a de Polignac number, because 89021493 - 2² = 89021489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89021453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78 + ... + 13343.

It is an arithmetic number, because the mean of its divisors is an integer number (5932524).

Almost surely, 2^89021493 is an apocalyptic number.

It is an amenable number.

89021493 is a deficient number, since it is larger than the sum of its proper divisors (53359083).

89021493 is a wasteful number, since it uses less digits than its factorization.

89021493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13505 (or 13502 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 89021493 is about 9435.1201900135. The cubic root of 89021493 is about 446.5104470276.

The spelling of 89021493 in words is "eighty-nine million, twenty-one thousand, four hundred ninety-three".