1606926845 has 4 divisors (see below), whose sum is σ = 1928312220. Its totient is φ = 1285541472.

The previous prime is 1606926829. The next prime is 1606926847. The reversal of 1606926845 is 5486296061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 737502649 + 869424196 = 27157^2 + 29486^2 .

It is a cyclic number.

It is not a de Polignac number, because 1606926845 - 2⁴ = 1606926829 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1606926845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606926847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160692680 + ... + 160692689.

It is an arithmetic number, because the mean of its divisors is an integer number (482078055).

Almost surely, 2^1606926845 is an apocalyptic number.

It is an amenable number.

1606926845 is a deficient number, since it is larger than the sum of its proper divisors (321385375).

1606926845 is an equidigital number, since it uses as much as digits as its factorization.

1606926845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321385374.

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 1606926845 is about 40086.4920515627. The cubic root of 1606926845 is about 1171.2925168713.

The spelling of 1606926845 in words is "one billion, six hundred six million, nine hundred twenty-six thousand, eight hundred forty-five".