8973989154 has 96 divisors (see below), whose sum is σ = 21237600384. Its totient is φ = 2722187520.

The previous prime is 8973989153. The next prime is 8973989173. The reversal of 8973989154 is 4519893798.

8973989154 is a `hidden beast` number, since 8 + 97 + 398 + 9 + 154 = 666.

It is a super-2 number, since 2×8973989154² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8973989091 and 8973989100.

It is not an unprimeable number, because it can be changed into a prime (8973989153) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5118342 + ... + 5120094.

It is an arithmetic number, because the mean of its divisors is an integer number (221225004).

Almost surely, 2^8973989154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8973989154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10618800192).

8973989154 is an abundant number, since it is smaller than the sum of its proper divisors (12263611230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8973989154 is a wasteful number, since it uses less digits than its factorization.

8973989154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2072 (or 2069 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 63.

The square root of 8973989154 is about 94731.1414161151. The cubic root of 8973989154 is about 2078.0780102210.

The spelling of 8973989154 in words is "eight billion, nine hundred seventy-three million, nine hundred eighty-nine thousand, one hundred fifty-four".