89807973 has 4 divisors (see below), whose sum is σ = 119743968. Its totient is φ = 59871980.

The previous prime is 89807969. The next prime is 89807981. The reversal of 89807973 is 37970898.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 89807973 - 2² = 89807969 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89807903) 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, 14967993 + ... + 14967998.

It is an arithmetic number, because the mean of its divisors is an integer number (29935992).

Almost surely, 2^89807973 is an apocalyptic number.

It is an amenable number.

89807973 is a deficient number, since it is larger than the sum of its proper divisors (29935995).

89807973 is a wasteful number, since it uses less digits than its factorization.

89807973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29935994.

The product of its (nonzero) digits is 762048, while the sum is 51.

The square root of 89807973 is about 9476.7068647289. The cubic root of 89807973 is about 447.8215252228.

The spelling of 89807973 in words is "eighty-nine million, eight hundred seven thousand, nine hundred seventy-three".