1699593961 has 6 divisors (see below), whose sum is σ = 1840388910. Its totient is φ = 1568855808.

The previous prime is 1699593919. The next prime is 1699593977. The reversal of 1699593961 is 1693959961.

It can be written as a sum of positive squares in 3 ways, for example, as 28419561 + 1671174400 = 5331^2 + 40880^2 .

It is not a de Polignac number, because 1699593961 - 2¹⁷ = 1699462889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1699593896 and 1699593905.

It is not an unprimeable number, because it can be changed into a prime (1699593911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5028216 + ... + 5028553.

It is an arithmetic number, because the mean of its divisors is an integer number (306731485).

Almost surely, 2^1699593961 is an apocalyptic number.

It is an amenable number.

1699593961 is a deficient number, since it is larger than the sum of its proper divisors (140794949).

1699593961 is a wasteful number, since it uses less digits than its factorization.

1699593961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10056795 (or 10056782 counting only the distinct ones).

The product of its digits is 3542940, while the sum is 58.

The square root of 1699593961 is about 41226.1320159920. The cubic root of 1699593961 is about 1193.3881646119.

The spelling of 1699593961 in words is "one billion, six hundred ninety-nine million, five hundred ninety-three thousand, nine hundred sixty-one".