991411234 has 16 divisors (see below), whose sum is σ = 1630468800. Its totient is φ = 448374960.

The previous prime is 991411229. The next prime is 991411243. The reversal of 991411234 is 432114199.

It is a self number, because there is not a number n which added to its sum of digits gives 991411234.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108849 + ... + 117604.

It is an arithmetic number, because the mean of its divisors is an integer number (101904300).

Almost surely, 2^991411234 is an apocalyptic number.

991411234 is a deficient number, since it is larger than the sum of its proper divisors (639057566).

991411234 is a wasteful number, since it uses less digits than its factorization.

991411234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226665.

The product of its digits is 7776, while the sum is 34.

The square root of 991411234 is about 31486.6834391938. The cubic root of 991411234 is about 997.1288423432.

The spelling of 991411234 in words is "nine hundred ninety-one million, four hundred eleven thousand, two hundred thirty-four".