8979999 has 8 divisors (see below), whose sum is σ = 13683840. Its totient is φ = 5131416.

The previous prime is 8979973. The next prime is 8980003. The reversal of 8979999 is 9999798.

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

It is not a de Polignac number, because 8979999 - 2¹¹ = 8977951 is a prime.

It is an Ulam number.

8979999 is a modest number, since divided by 9999 gives 897 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8979199) 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, 213789 + ... + 213830.

It is an arithmetic number, because the mean of its divisors is an integer number (1710480).

Almost surely, 2^8979999 is an apocalyptic number.

8979999 is a deficient number, since it is larger than the sum of its proper divisors (4703841).

8979999 is a wasteful number, since it uses less digits than its factorization.

8979999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427629.

The product of its digits is 3306744, while the sum is 60.

The square root of 8979999 is about 2996.6646459022. The cubic root of 8979999 is about 207.8541800319.

It can be divided in two parts, 89799 and 99, that added together give a palindrome (89898).

The spelling of 8979999 in words is "eight million, nine hundred seventy-nine thousand, nine hundred ninety-nine".