914813891 has 4 divisors (see below), whose sum is σ = 954588432. Its totient is φ = 875039352.

The previous prime is 914813869. The next prime is 914813897. The reversal of 914813891 is 198318419.

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 914813891 - 2⁶ = 914813827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (914813897) by changing a digit.

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, 19887236 + ... + 19887281.

It is an arithmetic number, because the mean of its divisors is an integer number (238647108).

Almost surely, 2^914813891 is an apocalyptic number.

914813891 is a deficient number, since it is larger than the sum of its proper divisors (39774541).

914813891 is a wasteful number, since it uses less digits than its factorization.

914813891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39774540.

The product of its digits is 62208, while the sum is 44.

The square root of 914813891 is about 30245.8904811877. The cubic root of 914813891 is about 970.7578627516.

The spelling of 914813891 in words is "nine hundred fourteen million, eight hundred thirteen thousand, eight hundred ninety-one".