2084921 has 2 divisors, whose sum is σ = 2084922. Its totient is φ = 2084920.

The previous prime is 2084917. The next prime is 2084947. The reversal of 2084921 is 1294802.

It is an a-pointer prime, because the next prime (2084947) can be obtained adding 2084921 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1155625 + 929296 = 1075^2 + 964^2 .

It is a cyclic number.

It is not a de Polignac number, because 2084921 - 2² = 2084917 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2084981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1042460 + 1042461.

It is an arithmetic number, because the mean of its divisors is an integer number (1042461).

2^2084921 is an apocalyptic number.

It is an amenable number.

2084921 is a deficient number, since it is larger than the sum of its proper divisors (1).

2084921 is an equidigital number, since it uses as much as digits as its factorization.

2084921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 2084921 is about 1443.9255520975. The cubic root of 2084921 is about 127.7506743326.

The spelling of 2084921 in words is "two million, eighty-four thousand, nine hundred twenty-one".