1047273985 has 8 divisors (see below), whose sum is σ = 1275486336. Its totient is φ = 825314160.

The previous prime is 1047273979. The next prime is 1047273989. The reversal of 1047273985 is 5893727401.

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

It is not a de Polignac number, because 1047273985 - 2²⁷ = 913056257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1047273989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1562761 + ... + 1563430.

It is an arithmetic number, because the mean of its divisors is an integer number (159435792).

Almost surely, 2^1047273985 is an apocalyptic number.

It is an amenable number.

1047273985 is a deficient number, since it is larger than the sum of its proper divisors (228212351).

1047273985 is an equidigital number, since it uses as much as digits as its factorization.

1047273985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3126263.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 1047273985 is about 32361.6128306362. The cubic root of 1047273985 is about 1015.5160034951.

The spelling of 1047273985 in words is "one billion, forty-seven million, two hundred seventy-three thousand, nine hundred eighty-five".