89934989 has 4 divisors (see below), whose sum is σ = 90059424. Its totient is φ = 89810556.

The previous prime is 89934967. The next prime is 89935007. The reversal of 89934989 is 98943998.

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.

It is a cyclic number.

It is not a de Polignac number, because 89934989 - 2¹⁶ = 89869453 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 (89934959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61127 + ... + 62580.

It is an arithmetic number, because the mean of its divisors is an integer number (22514856).

Almost surely, 2^89934989 is an apocalyptic number.

It is an amenable number.

89934989 is a deficient number, since it is larger than the sum of its proper divisors (124435).

89934989 is a wasteful number, since it uses less digits than its factorization.

89934989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124434.

The product of its digits is 5038848, while the sum is 59.

The square root of 89934989 is about 9483.4059809754. The cubic root of 89934989 is about 448.0325447366.

Subtracting 89934989 from its reverse (98943998), we obtain a palindrome (9009009).

The spelling of 89934989 in words is "eighty-nine million, nine hundred thirty-four thousand, nine hundred eighty-nine".