89809982 has 4 divisors (see below), whose sum is σ = 134714976. Its totient is φ = 44904990.

The previous prime is 89809969. The next prime is 89809987. The reversal of 89809982 is 28990898.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28990898 = 2 ⋅14495449.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89809987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22452494 + ... + 22452497.

It is an arithmetic number, because the mean of its divisors is an integer number (33678744).

Almost surely, 2^89809982 is an apocalyptic number.

89809982 is a deficient number, since it is larger than the sum of its proper divisors (44904994).

89809982 is a wasteful number, since it uses less digits than its factorization.

89809982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44904993.

The product of its (nonzero) digits is 746496, while the sum is 53.

The square root of 89809982 is about 9476.8128608726. The cubic root of 89809982 is about 447.8248644465.

The spelling of 89809982 in words is "eighty-nine million, eight hundred nine thousand, nine hundred eighty-two".