1699113805 has 4 divisors (see below), whose sum is σ = 2038936572. Its totient is φ = 1359291040.

The previous prime is 1699113797. The next prime is 1699113811. The reversal of 1699113805 is 5083119961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5083119961 = 61987 ⋅82003.

It can be written as a sum of positive squares in 2 ways, for example, as 667033929 + 1032079876 = 25827^2 + 32126^2 .

It is not a de Polignac number, because 1699113805 - 2³ = 1699113797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169911376 + ... + 169911385.

It is an arithmetic number, because the mean of its divisors is an integer number (509734143).

Almost surely, 2^1699113805 is an apocalyptic number.

It is an amenable number.

1699113805 is a deficient number, since it is larger than the sum of its proper divisors (339822767).

1699113805 is an equidigital number, since it uses as much as digits as its factorization.

1699113805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339822766.

The product of its (nonzero) digits is 58320, while the sum is 43.

The square root of 1699113805 is about 41220.3081623609. The cubic root of 1699113805 is about 1193.2757717953.

The spelling of 1699113805 in words is "one billion, six hundred ninety-nine million, one hundred thirteen thousand, eight hundred five".