2089951 has 2 divisors, whose sum is σ = 2089952. Its totient is φ = 2089950.

The previous prime is 2089939. The next prime is 2089979. The reversal of 2089951 is 1599802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2089951 - 2¹¹ = 2087903 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2089051) 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 as a sum of consecutive naturals, namely, 1044975 + 1044976.

It is an arithmetic number, because the mean of its divisors is an integer number (1044976).

2^2089951 is an apocalyptic number.

2089951 is a deficient number, since it is larger than the sum of its proper divisors (1).

2089951 is an equidigital number, since it uses as much as digits as its factorization.

2089951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 2089951 is about 1445.6662823764. Note that the first 3 decimals coincide. The cubic root of 2089951 is about 127.8533272747.

The spelling of 2089951 in words is "two million, eighty-nine thousand, nine hundred fifty-one".