11699961 has 32 divisors (see below), whose sum is σ = 20337408. Its totient is φ = 5806080.

The previous prime is 11699959. The next prime is 11699969. The reversal of 11699961 is 16999611.

It is not a de Polignac number, because 11699961 - 2¹ = 11699959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11699969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3381 + ... + 5901.

It is an arithmetic number, because the mean of its divisors is an integer number (635544).

Almost surely, 2^11699961 is an apocalyptic number.

It is an amenable number.

11699961 is a deficient number, since it is larger than the sum of its proper divisors (8637447).

11699961 is a wasteful number, since it uses less digits than its factorization.

11699961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2561.

The product of its digits is 26244, while the sum is 42.

The square root of 11699961 is about 3420.5205744155. The cubic root of 11699961 is about 227.0186158215.

The spelling of 11699961 in words is "eleven million, six hundred ninety-nine thousand, nine hundred sixty-one".