1064443493 has 2 divisors, whose sum is σ = 1064443494. Its totient is φ = 1064443492.

The previous prime is 1064443489. The next prime is 1064443507. The reversal of 1064443493 is 3943444601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 932813764 + 131629729 = 30542^2 + 11473^2 .

It is an emirp because it is prime and its reverse (3943444601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1064443493 - 2² = 1064443489 is a prime.

It is a super-4 number, since 4×1064443493⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1064443433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532221746 + 532221747.

It is an arithmetic number, because the mean of its divisors is an integer number (532221747).

Almost surely, 2^1064443493 is an apocalyptic number.

It is an amenable number.

1064443493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1064443493 is an equidigital number, since it uses as much as digits as its factorization.

1064443493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 1064443493 is about 32625.8102274871. The cubic root of 1064443493 is about 1021.0355665613.

The spelling of 1064443493 in words is "one billion, sixty-four million, four hundred forty-three thousand, four hundred ninety-three".