991114 has 4 divisors (see below), whose sum is σ = 1486674. Its totient is φ = 495556.

The previous prime is 991091. The next prime is 991127. The reversal of 991114 is 411199.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 411199 = 283 ⋅1453.

It can be written as a sum of positive squares in only one way, i.e., 990025 + 1089 = 995^2 + 33^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247777 + ... + 247780.

2⁹⁹¹¹¹⁴ is an apocalyptic number.

991114 is a deficient number, since it is larger than the sum of its proper divisors (495560).

991114 is a wasteful number, since it uses less digits than its factorization.

991114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495559.

The product of its digits is 324, while the sum is 25.

The square root of 991114 is about 995.5470857775. The cubic root of 991114 is about 99.7029182986.

The spelling of 991114 in words is "nine hundred ninety-one thousand, one hundred fourteen".