1047263321 has 8 divisors (see below), whose sum is σ = 1137804360. Its totient is φ = 958148352.

The previous prime is 1047263317. The next prime is 1047263351. The reversal of 1047263321 is 1233627401.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 41422096 + 1005841225 = 6436^2 + 31715^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1047263321 - 2² = 1047263317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1047263351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354986 + ... + 357923.

It is an arithmetic number, because the mean of its divisors is an integer number (142225545).

Almost surely, 2^1047263321 is an apocalyptic number.

It is an amenable number.

1047263321 is a deficient number, since it is larger than the sum of its proper divisors (90541039).

1047263321 is a wasteful number, since it uses less digits than its factorization.

1047263321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713035.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 1047263321 is about 32361.4480671060. The cubic root of 1047263321 is about 1015.5125566099.

The spelling of 1047263321 in words is "one billion, forty-seven million, two hundred sixty-three thousand, three hundred twenty-one".