991224714 has 8 divisors (see below), whose sum is σ = 1982449440. Its totient is φ = 330408236.

The previous prime is 991224697. The next prime is 991224739. The reversal of 991224714 is 417422199.

991224714 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

991224714 is an admirable number.

It is a Curzon number.

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, 82602054 + ... + 82602065.

It is an arithmetic number, because the mean of its divisors is an integer number (247806180).

Almost surely, 2^991224714 is an apocalyptic number.

991224714 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

991224714 is a wasteful number, since it uses less digits than its factorization.

991224714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165204124.

The product of its digits is 36288, while the sum is 39.

The square root of 991224714 is about 31483.7214128190. The cubic root of 991224714 is about 997.0663065256.

The spelling of 991224714 in words is "nine hundred ninety-one million, two hundred twenty-four thousand, seven hundred fourteen".