1047715985 has 8 divisors (see below), whose sum is σ = 1257579816. Its totient is φ = 837959040.

The previous prime is 1047715979. The next prime is 1047715997. The reversal of 1047715985 is 5895177401.

1047715985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 210366016 + 837349969 = 14504^2 + 28937^2 .

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

It is not a de Polignac number, because 1047715985 - 2¹⁰ = 1047714961 is a prime.

It is a Duffinian number.

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, 3284 + ... + 45893.

It is an arithmetic number, because the mean of its divisors is an integer number (157197477).

Almost surely, 2^1047715985 is an apocalyptic number.

It is an amenable number.

1047715985 is a deficient number, since it is larger than the sum of its proper divisors (209863831).

1047715985 is an equidigital number, since it uses as much as digits as its factorization.

1047715985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53443.

The product of its (nonzero) digits is 352800, while the sum is 47.

The square root of 1047715985 is about 32368.4411889112. The cubic root of 1047715985 is about 1015.6588489358.

It can be divided in two parts, 10477 and 15985, that added together give a palindrome (26462).

The spelling of 1047715985 in words is "one billion, forty-seven million, seven hundred fifteen thousand, nine hundred eighty-five".