1064710721 has 2 divisors, whose sum is σ = 1064710722. Its totient is φ = 1064710720.

The previous prime is 1064710709. The next prime is 1064710769. The reversal of 1064710721 is 1270174601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 712623025 + 352087696 = 26695^2 + 18764^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1064710721 is a prime.

It is a super-2 number, since 2×1064710721² = 2267217838824679682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1064710781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532355360 + 532355361.

It is an arithmetic number, because the mean of its divisors is an integer number (532355361).

Almost surely, 2^1064710721 is an apocalyptic number.

It is an amenable number.

1064710721 is a deficient number, since it is larger than the sum of its proper divisors (1).

1064710721 is an equidigital number, since it uses as much as digits as its factorization.

1064710721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 1064710721 is about 32629.9053170554. The cubic root of 1064710721 is about 1021.1210028995.

The spelling of 1064710721 in words is "one billion, sixty-four million, seven hundred ten thousand, seven hundred twenty-one".