89982381 has 8 divisors (see below), whose sum is σ = 121943584. Its totient is φ = 59004720.

The previous prime is 89982353. The next prime is 89982419. The reversal of 89982381 is 18328998.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 89982381 - 2¹⁹ = 89458093 is a prime.

It is a super-2 number, since 2×89982381² = 16193657780858322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89982381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89982481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245671 + ... + 246036.

It is an arithmetic number, because the mean of its divisors is an integer number (15242948).

Almost surely, 2^89982381 is an apocalyptic number.

It is an amenable number.

89982381 is a deficient number, since it is larger than the sum of its proper divisors (31961203).

89982381 is a wasteful number, since it uses less digits than its factorization.

89982381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491771.

The product of its digits is 248832, while the sum is 48.

The square root of 89982381 is about 9485.9043322184. The cubic root of 89982381 is about 448.1112290916. Note that the first 3 decimals are identical.

The spelling of 89982381 in words is "eighty-nine million, nine hundred eighty-two thousand, three hundred eighty-one".