1075897805 has 6 divisors (see below), whose sum is σ = 1291165386. Its totient is φ = 860659568.

The previous prime is 1075897787. The next prime is 1075897807. The reversal of 1075897805 is 5087985701.

It can be written as a sum of positive squares in 3 ways, for example, as 219691684 + 856206121 = 14822^2 + 29261^2 .

It is not a de Polignac number, because 1075897805 - 2²⁰ = 1074849229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1075897807) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66011 + ... + 80679.

It is an arithmetic number, because the mean of its divisors is an integer number (215194231).

Almost surely, 2^1075897805 is an apocalyptic number.

It is an amenable number.

1075897805 is a deficient number, since it is larger than the sum of its proper divisors (215267581).

1075897805 is an frugal number, since it uses more digits than its factorization.

1075897805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29343 (or 14674 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 50.

The square root of 1075897805 is about 32800.8811619444. The cubic root of 1075897805 is about 1024.6849096933.

The spelling of 1075897805 in words is "one billion, seventy-five million, eight hundred ninety-seven thousand, eight hundred five".