89889427 has 4 divisors (see below), whose sum is σ = 91802016. Its totient is φ = 87976840.

The previous prime is 89889409. The next prime is 89889461. The reversal of 89889427 is 72498898.

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 89889427 - 2¹⁹ = 89365139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89889227) 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, 956224 + ... + 956317.

It is an arithmetic number, because the mean of its divisors is an integer number (22950504).

Almost surely, 2^89889427 is an apocalyptic number.

89889427 is a deficient number, since it is larger than the sum of its proper divisors (1912589).

89889427 is a wasteful number, since it uses less digits than its factorization.

89889427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912588.

The product of its digits is 2322432, while the sum is 55.

The square root of 89889427 is about 9481.0034806449. The cubic root of 89889427 is about 447.9568726421.

The spelling of 89889427 in words is "eighty-nine million, eight hundred eighty-nine thousand, four hundred twenty-seven".