89653021 has 4 divisors (see below), whose sum is σ = 89681344. Its totient is φ = 89624700.

The previous prime is 89653009. The next prime is 89653027. The reversal of 89653021 is 12035698.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12035698 = 2 ⋅6017849.

It is a cyclic number.

It is not a de Polignac number, because 89653021 - 2¹¹ = 89650973 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 (89653027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8715 + ... + 15976.

It is an arithmetic number, because the mean of its divisors is an integer number (22420336).

Almost surely, 2^89653021 is an apocalyptic number.

It is an amenable number.

89653021 is a deficient number, since it is larger than the sum of its proper divisors (28323).

89653021 is a wasteful number, since it uses less digits than its factorization.

89653021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28322.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 89653021 is about 9468.5279214881. The cubic root of 89653021 is about 447.5638243184.

The spelling of 89653021 in words is "eighty-nine million, six hundred fifty-three thousand, twenty-one".