4709981 has 2 divisors, whose sum is σ = 4709982. Its totient is φ = 4709980.

The previous prime is 4709959. The next prime is 4709987. The reversal of 4709981 is 1899074.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4553956 + 156025 = 2134^2 + 395^2 .

It is a cyclic number.

It is not a de Polignac number, because 4709981 - 2²² = 515677 is a prime.

It is a super-2 number, since 2×4709981² = 44367842040722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4709987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2354990 + 2354991.

It is an arithmetic number, because the mean of its divisors is an integer number (2354991).

Almost surely, 2^4709981 is an apocalyptic number.

It is an amenable number.

4709981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4709981 is an equidigital number, since it uses as much as digits as its factorization.

4709981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 4709981 is about 2170.2490640477. The cubic root of 4709981 is about 167.6253580032.

The spelling of 4709981 in words is "four million, seven hundred nine thousand, nine hundred eighty-one".