1047747912 has 16 divisors (see below), whose sum is σ = 2619369840. Its totient is φ = 349249296.

The previous prime is 1047747823. The next prime is 1047747971. The reversal of 1047747912 is 2197477401.

It is an unprimeable number.

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, 21828058 + ... + 21828105.

It is an arithmetic number, because the mean of its divisors is an integer number (163710615).

Almost surely, 2^1047747912 is an apocalyptic number.

1047747912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1047747912 is an abundant number, since it is smaller than the sum of its proper divisors (1571621928).

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

1047747912 is a wasteful number, since it uses less digits than its factorization.

1047747912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43656172 (or 43656168 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 1047747912 is about 32368.9343661480. The cubic root of 1047747912 is about 1015.6691655391.

It can be divided in two parts, 104 and 7747912, that added together give a triangular number (7748016 = T₃₉₃₆).

The spelling of 1047747912 in words is "one billion, forty-seven million, seven hundred forty-seven thousand, nine hundred twelve".