9991514 has 8 divisors (see below), whose sum is σ = 16140180. Its totient is φ = 4611456.

The previous prime is 9991489. The next prime is 9991543. The reversal of 9991514 is 4151999.

9991514 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9891025 + 100489 = 3145^2 + 317^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192119 + ... + 192170.

Almost surely, 2^9991514 is an apocalyptic number.

9991514 is a deficient number, since it is larger than the sum of its proper divisors (6148666).

9991514 is a wasteful number, since it uses less digits than its factorization.

9991514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384304.

The product of its digits is 14580, while the sum is 38.

The square root of 9991514 is about 3160.9356209831. The cubic root of 9991514 is about 215.3825099807.

The spelling of 9991514 in words is "nine million, nine hundred ninety-one thousand, five hundred fourteen".