1690108853 has 2 divisors, whose sum is σ = 1690108854. Its totient is φ = 1690108852.

The previous prime is 1690108841. The next prime is 1690108909. The reversal of 1690108853 is 3588010961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1689374404 + 734449 = 41102^2 + 857^2 .

It is a cyclic number.

It is not a de Polignac number, because 1690108853 - 2⁴ = 1690108837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1690108853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1690108753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 845054426 + 845054427.

It is an arithmetic number, because the mean of its divisors is an integer number (845054427).

Almost surely, 2^1690108853 is an apocalyptic number.

It is an amenable number.

1690108853 is a deficient number, since it is larger than the sum of its proper divisors (1).

1690108853 is an equidigital number, since it uses as much as digits as its factorization.

1690108853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 1690108853 is about 41110.9334970638. The cubic root of 1690108853 is about 1191.1639984129.

It can be divided in two parts, 1690108 and 853, that added together give a palindrome (1690961).

The spelling of 1690108853 in words is "one billion, six hundred ninety million, one hundred eight thousand, eight hundred fifty-three".