1027646473 has 12 divisors (see below), whose sum is σ = 1227736452. Its totient is φ = 857031840.

The previous prime is 1027646461. The next prime is 1027646491. The reversal of 1027646473 is 3746467201.

It can be written as a sum of positive squares in 2 ways, for example, as 430479504 + 597166969 = 20748^2 + 24437^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1027646473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1027640473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281598 + ... + 285223.

It is an arithmetic number, because the mean of its divisors is an integer number (102311371).

Almost surely, 2^1027646473 is an apocalyptic number.

It is an amenable number.

1027646473 is a deficient number, since it is larger than the sum of its proper divisors (200089979).

1027646473 is an equidigital number, since it uses as much as digits as its factorization.

1027646473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566872 (or 566865 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 40.

The square root of 1027646473 is about 32056.9255076029. The cubic root of 1027646473 is about 1009.1318465419.

The spelling of 1027646473 in words is "one billion, twenty-seven million, six hundred forty-six thousand, four hundred seventy-three".