4492681 has 2 divisors, whose sum is σ = 4492682. Its totient is φ = 4492680.

The previous prime is 4492679. The next prime is 4492687. The reversal of 4492681 is 1862944.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3980025 + 512656 = 1995^2 + 716^2 .

It is a cyclic number.

It is not a de Polignac number, because 4492681 - 2¹ = 4492679 is a prime.

It is a super-2 number, since 2×4492681² = 40368365135522, which contains 22 as substring.

Together with 4492679, it forms a pair of twin primes.

4492681 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4492687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2246340 + 2246341.

It is an arithmetic number, because the mean of its divisors is an integer number (2246341).

Almost surely, 2^4492681 is an apocalyptic number.

It is an amenable number.

4492681 is a deficient number, since it is larger than the sum of its proper divisors (1).

4492681 is an equidigital number, since it uses as much as digits as its factorization.

4492681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 34.

The square root of 4492681 is about 2119.5945366980. The cubic root of 4492681 is about 165.0068071878.

The spelling of 4492681 in words is "four million, four hundred ninety-two thousand, six hundred eighty-one".