999991514 has 8 divisors (see below), whose sum is σ = 1551711060. Its totient is φ = 482754496.

The previous prime is 999991507. The next prime is 999991547. The reversal of 999991514 is 415199999.

It can be written as a sum of positive squares in 2 ways, for example, as 973128025 + 26863489 = 31195^2 + 5183^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 999991514.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8620559 + ... + 8620674.

Almost surely, 2^999991514 is an apocalyptic number.

999991514 is a deficient number, since it is larger than the sum of its proper divisors (551719546).

999991514 is a wasteful number, since it uses less digits than its factorization.

999991514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17241264.

The product of its digits is 1180980, while the sum is 56.

The square root of 999991514 is about 31622.6424259580. The cubic root of 999991514 is about 999.9971713253.

The spelling of 999991514 in words is "nine hundred ninety-nine million, nine hundred ninety-one thousand, five hundred fourteen".