89611966 has 4 divisors (see below), whose sum is σ = 134417952. Its totient is φ = 44805982.

The previous prime is 89611931. The next prime is 89611967. The reversal of 89611966 is 66911698.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89611967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22402990 + ... + 22402993.

It is an arithmetic number, because the mean of its divisors is an integer number (33604488).

Almost surely, 2^89611966 is an apocalyptic number.

89611966 is a deficient number, since it is larger than the sum of its proper divisors (44805986).

89611966 is a wasteful number, since it uses less digits than its factorization.

89611966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44805985.

The product of its digits is 139968, while the sum is 46.

The square root of 89611966 is about 9466.3597015960. The cubic root of 89611966 is about 447.4954959338.

The spelling of 89611966 in words is "eighty-nine million, six hundred eleven thousand, nine hundred sixty-six".