1699836648 has 16 divisors (see below), whose sum is σ = 4249591680. Its totient is φ = 566612208.

The previous prime is 1699836641. The next prime is 1699836659. The reversal of 1699836648 is 8466389961.

It is a junction number, because it is equal to n+sod(n) for n = 1699836591 and 1699836600.

It is not an unprimeable number, because it can be changed into a prime (1699836641) 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, 35413240 + ... + 35413287.

It is an arithmetic number, because the mean of its divisors is an integer number (265599480).

Almost surely, 2^1699836648 is an apocalyptic number.

It is an amenable number.

1699836648 is an abundant number, since it is smaller than the sum of its proper divisors (2549755032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1699836648 is a wasteful number, since it uses less digits than its factorization.

1699836648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70826536 (or 70826532 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 60.

The square root of 1699836648 is about 41229.0752746166. The cubic root of 1699836648 is about 1193.4449636702. Note that the first 3 decimals are identical.

The spelling of 1699836648 in words is "one billion, six hundred ninety-nine million, eight hundred thirty-six thousand, six hundred forty-eight".