4237981 has 16 divisors (see below), whose sum is σ = 4961088. Its totient is φ = 3577600.

The previous prime is 4237967. The next prime is 4237993. The reversal of 4237981 is 1897324.

It is a cyclic number.

It is not a de Polignac number, because 4237981 - 2⁹ = 4237469 is a prime.

It is a super-2 number, since 2×4237981² = 35920965912722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4237921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24411 + ... + 24583.

It is an arithmetic number, because the mean of its divisors is an integer number (310068).

Almost surely, 2^4237981 is an apocalyptic number.

It is an amenable number.

4237981 is a deficient number, since it is larger than the sum of its proper divisors (723107).

4237981 is a wasteful number, since it uses less digits than its factorization.

4237981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332.

The product of its digits is 12096, while the sum is 34.

The square root of 4237981 is about 2058.6357132820. The cubic root of 4237981 is about 161.8277521951.

The spelling of 4237981 in words is "four million, two hundred thirty-seven thousand, nine hundred eighty-one".