1047045747 has 32 divisors (see below), whose sum is σ = 1548481536. Its totient is φ = 624020000.

The previous prime is 1047045731. The next prime is 1047045757. The reversal of 1047045747 is 7475407401.

It is a cyclic number.

It is not a de Polignac number, because 1047045747 - 2⁴ = 1047045731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1047045757) 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 31 ways as a sum of consecutive naturals, for example, 686728 + ... + 688250.

It is an arithmetic number, because the mean of its divisors is an integer number (48390048).

Almost surely, 2^1047045747 is an apocalyptic number.

1047045747 is a deficient number, since it is larger than the sum of its proper divisors (501435789).

1047045747 is a wasteful number, since it uses less digits than its factorization.

1047045747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871.

The product of its (nonzero) digits is 109760, while the sum is 39.

The square root of 1047045747 is about 32358.0862691229. The cubic root of 1047045747 is about 1015.4422258639.

The spelling of 1047045747 in words is "one billion, forty-seven million, forty-five thousand, seven hundred forty-seven".