8379999 has 12 divisors (see below), whose sum is σ = 12154896. Its totient is φ = 5563392.

The previous prime is 8379961. The next prime is 8380037. The reversal of 8379999 is 9999738.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8379961) and next prime (8380037).

It is not a de Polignac number, because 8379999 - 2¹¹ = 8377951 is a prime.

8379999 is a modest number, since divided by 9999 gives 837 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8379299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 502 + ... + 4124.

It is an arithmetic number, because the mean of its divisors is an integer number (1012908).

Almost surely, 2^8379999 is an apocalyptic number.

8379999 is a deficient number, since it is larger than the sum of its proper divisors (3774897).

8379999 is a wasteful number, since it uses less digits than its factorization.

8379999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3886 (or 3883 counting only the distinct ones).

The product of its digits is 1102248, while the sum is 54.

The square root of 8379999 is about 2894.8227925039. The cubic root of 8379999 is about 203.1178023169.

The spelling of 8379999 in words is "eight million, three hundred seventy-nine thousand, nine hundred ninety-nine".