8672911989 has 8 divisors (see below), whose sum is σ = 13215865920. Its totient is φ = 4955949696.

The previous prime is 8672911979. The next prime is 8672912009. The reversal of 8672911989 is 9891192768.

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

It is not a de Polignac number, because 8672911989 - 2¹⁶ = 8672846453 is a prime.

It is a super-2 number, since 2×8672911989² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8672911939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206497884 + ... + 206497925.

It is an arithmetic number, because the mean of its divisors is an integer number (1651983240).

Almost surely, 2^8672911989 is an apocalyptic number.

It is an amenable number.

8672911989 is a deficient number, since it is larger than the sum of its proper divisors (4542953931).

8672911989 is a wasteful number, since it uses less digits than its factorization.

8672911989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412995819.

The product of its digits is 3919104, while the sum is 60.

The square root of 8672911989 is about 93128.4703460762. The cubic root of 8672911989 is about 2054.5733304727.

The spelling of 8672911989 in words is "eight billion, six hundred seventy-two million, nine hundred eleven thousand, nine hundred eighty-nine".