1000007999 has 4 divisors (see below), whose sum is σ = 1024398480. Its totient is φ = 975617520.

The previous prime is 1000007941. The next prime is 1000008041. The reversal of 1000007999 is 9997000001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1000007999 - 2²⁴ = 983230783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000007909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12195179 + ... + 12195260.

It is an arithmetic number, because the mean of its divisors is an integer number (256099620).

Almost surely, 2^1000007999 is an apocalyptic number.

1000007999 is a deficient number, since it is larger than the sum of its proper divisors (24390481).

1000007999 is an equidigital number, since it uses as much as digits as its factorization.

1000007999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24390480.

The product of its (nonzero) digits is 5103, while the sum is 35.

The square root of 1000007999 is about 31622.9030767259. The cubic root of 1000007999 is about 1000.0026663262.

The spelling of 1000007999 in words is "one billion, seven thousand, nine hundred ninety-nine".