89927897 has 4 divisors (see below), whose sum is σ = 91159860. Its totient is φ = 88695936.

The previous prime is 89927891. The next prime is 89927911. The reversal of 89927897 is 79872998.

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

It can be written as a sum of positive squares in 2 ways, for example, as 75151561 + 14776336 = 8669^2 + 3844^2 .

It is a cyclic number.

It is not a de Polignac number, because 89927897 - 2⁴ = 89927881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89927891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 615872 + ... + 616017.

It is an arithmetic number, because the mean of its divisors is an integer number (22789965).

Almost surely, 2^89927897 is an apocalyptic number.

It is an amenable number.

89927897 is a deficient number, since it is larger than the sum of its proper divisors (1231963).

89927897 is a wasteful number, since it uses less digits than its factorization.

89927897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231962.

The product of its digits is 4572288, while the sum is 59.

The square root of 89927897 is about 9483.0320573116. The cubic root of 89927897 is about 448.0207675986.

The spelling of 89927897 in words is "eighty-nine million, nine hundred twenty-seven thousand, eight hundred ninety-seven".