4267981 has 2 divisors, whose sum is σ = 4267982. Its totient is φ = 4267980.

The previous prime is 4267973. The next prime is 4268009. The reversal of 4267981 is 1897624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2223081 + 2044900 = 1491^2 + 1430^2 .

It is a cyclic number.

It is not a de Polignac number, because 4267981 - 2³ = 4267973 is a prime.

It is a super-2 number, since 2×4267981² = 36431323632722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4267981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4261981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2133990 + 2133991.

It is an arithmetic number, because the mean of its divisors is an integer number (2133991).

Almost surely, 2^4267981 is an apocalyptic number.

It is an amenable number.

4267981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4267981 is an equidigital number, since it uses as much as digits as its factorization.

4267981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 37.

The square root of 4267981 is about 2065.9092429243. The cubic root of 4267981 is about 162.2087057572.

The spelling of 4267981 in words is "four million, two hundred sixty-seven thousand, nine hundred eighty-one".