1064921719 has 2 divisors, whose sum is σ = 1064921720. Its totient is φ = 1064921718.

The previous prime is 1064921699. The next prime is 1064921729. The reversal of 1064921719 is 9171294601.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1064921719 is a prime.

It is a super-2 number, since 2×1064921719² = 2268116535195829922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1064921729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532460859 + 532460860.

It is an arithmetic number, because the mean of its divisors is an integer number (532460860).

Almost surely, 2^1064921719 is an apocalyptic number.

1064921719 is a deficient number, since it is larger than the sum of its proper divisors (1).

1064921719 is an equidigital number, since it uses as much as digits as its factorization.

1064921719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 1064921719 is about 32633.1383565847. The cubic root of 1064921719 is about 1021.1884516610.

The spelling of 1064921719 in words is "one billion, sixty-four million, nine hundred twenty-one thousand, seven hundred nineteen".