89782291 has 4 divisors (see below), whose sum is σ = 90467784. Its totient is φ = 89096800.

The previous prime is 89782261. The next prime is 89782307. The reversal of 89782291 is 19228798.

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

It is a cyclic number.

It is not a de Polignac number, because 89782291 - 2¹⁵ = 89749523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89782241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342550 + ... + 342811.

It is an arithmetic number, because the mean of its divisors is an integer number (22616946).

Almost surely, 2^89782291 is an apocalyptic number.

89782291 is a deficient number, since it is larger than the sum of its proper divisors (685493).

89782291 is a wasteful number, since it uses less digits than its factorization.

89782291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685492.

The product of its digits is 145152, while the sum is 46.

The square root of 89782291 is about 9475.3517612804. The cubic root of 89782291 is about 447.7788339542.

The spelling of 89782291 in words is "eighty-nine million, seven hundred eighty-two thousand, two hundred ninety-one".