89972027997 has 8 divisors (see below), whose sum is σ = 120460475520. Its totient is φ = 59732466240.

The previous prime is 89972027989. The next prime is 89972028011. The reversal of 89972027997 is 79972027998.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 89972027997 - 2³ = 89972027989 is a prime.

It is a super-3 number, since 3×89972027997³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89972020997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62220597 + ... + 62222042.

It is an arithmetic number, because the mean of its divisors is an integer number (15057559440).

Almost surely, 2^89972027997 is an apocalyptic number.

It is an amenable number.

89972027997 is a deficient number, since it is larger than the sum of its proper divisors (30488447523).

89972027997 is a wasteful number, since it uses less digits than its factorization.

89972027997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124442883.

The product of its (nonzero) digits is 72013536, while the sum is 69.

Subtracting from 89972027997 its reverse (79972027998), we obtain a palindrome (9999999999).

The spelling of 89972027997 in words is "eighty-nine billion, nine hundred seventy-two million, twenty-seven thousand, nine hundred ninety-seven".