89933997 has 4 divisors (see below), whose sum is σ = 119912000. Its totient is φ = 59955996.

The previous prime is 89933993. The next prime is 89933999. The reversal of 89933997 is 79933998.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 89933997 - 2² = 89933993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89933993) 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, 14988997 + ... + 14989002.

It is an arithmetic number, because the mean of its divisors is an integer number (29978000).

Almost surely, 2^89933997 is an apocalyptic number.

It is an amenable number.

89933997 is a deficient number, since it is larger than the sum of its proper divisors (29978003).

89933997 is a wasteful number, since it uses less digits than its factorization.

89933997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29978002.

The product of its digits is 3306744, while the sum is 57.

The square root of 89933997 is about 9483.3536789471. The cubic root of 89933997 is about 448.0308974359.

Subtracting from 89933997 its reverse (79933998), we obtain a palindrome (9999999).

The spelling of 89933997 in words is "eighty-nine million, nine hundred thirty-three thousand, nine hundred ninety-seven".