2101967 has 8 divisors (see below), whose sum is σ = 2411136. Its totient is φ = 1795032.

The previous prime is 2101961. The next prime is 2102021. The reversal of 2101967 is 7691012.

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 2101967 - 2⁶ = 2101903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2948 + ... + 3590.

It is an arithmetic number, because the mean of its divisors is an integer number (301392).

2^2101967 is an apocalyptic number.

2101967 is a deficient number, since it is larger than the sum of its proper divisors (309169).

2101967 is an equidigital number, since it uses as much as digits as its factorization.

2101967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 2101967 is about 1449.8161952468. The cubic root of 2101967 is about 128.0978865491.

Adding to 2101967 its reverse (7691012), we get a palindrome (9792979).

The spelling of 2101967 in words is "two million, one hundred one thousand, nine hundred sixty-seven".