1073670665 has 16 divisors (see below), whose sum is σ = 1298593296. Its totient is φ = 852172800.

The previous prime is 1073670623. The next prime is 1073670667. The reversal of 1073670665 is 5660763701.

It can be written as a sum of positive squares in 8 ways, for example, as 400320064 + 673350601 = 20008^2 + 25949^2 .

It is not a de Polignac number, because 1073670665 - 2²² = 1069476361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1073670667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351545 + ... + 354585.

It is an arithmetic number, because the mean of its divisors is an integer number (81162081).

Almost surely, 2^1073670665 is an apocalyptic number.

It is an amenable number.

1073670665 is a deficient number, since it is larger than the sum of its proper divisors (224922631).

1073670665 is a wasteful number, since it uses less digits than its factorization.

1073670665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3580.

The product of its (nonzero) digits is 158760, while the sum is 41.

The square root of 1073670665 is about 32766.9141818390. The cubic root of 1073670665 is about 1023.9773786634.

The spelling of 1073670665 in words is "one billion, seventy-three million, six hundred seventy thousand, six hundred sixty-five".