1699999961 has 8 divisors (see below), whose sum is σ = 1861101984. Its totient is φ = 1539990720.

The previous prime is 1699999927. The next prime is 1699999991.

1699999961 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1699999961 - 2¹⁴ = 1699983577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1699999891 and 1699999900.

It is not an unprimeable number, because it can be changed into a prime (1699999991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269936 + ... + 276161.

It is an arithmetic number, because the mean of its divisors is an integer number (232637748).

Almost surely, 2^1699999961 is an apocalyptic number.

1699999961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1699999961 is a deficient number, since it is larger than the sum of its proper divisors (161102023).

1699999961 is a wasteful number, since it uses less digits than its factorization.

1699999961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546391.

The product of its digits is 19131876, while the sum is 68.

The square root of 1699999961 is about 41231.0557832321. The cubic root of 1699999961 is about 1193.4831828007.

The spelling of 1699999961 in words is "one billion, six hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred sixty-one".