89642867 has 4 divisors (see below), whose sum is σ = 89679240. Its totient is φ = 89606496.

The previous prime is 89642827. The next prime is 89642869. The reversal of 89642867 is 76824698.

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 89642867 - 2¹⁴ = 89626483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89642869) 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, 14198 + ... + 19515.

It is an arithmetic number, because the mean of its divisors is an integer number (22419810).

Almost surely, 2^89642867 is an apocalyptic number.

89642867 is a deficient number, since it is larger than the sum of its proper divisors (36373).

89642867 is a wasteful number, since it uses less digits than its factorization.

89642867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36372.

The product of its digits is 1161216, while the sum is 50.

The square root of 89642867 is about 9467.9917089106. The cubic root of 89642867 is about 447.5469268226.

It can be divided in two parts, 89642 and 867, that added together give a palindrome (90509).

The spelling of 89642867 in words is "eighty-nine million, six hundred forty-two thousand, eight hundred sixty-seven".