5237981 has 4 divisors (see below), whose sum is σ = 5986272. Its totient is φ = 4489692.

The previous prime is 5237941. The next prime is 5237983. The reversal of 5237981 is 1897325.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5237981 - 2¹⁴ = 5221597 is a prime.

It is a super-2 number, since 2×5237981² = 54872889912722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5237983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374135 + ... + 374148.

It is an arithmetic number, because the mean of its divisors is an integer number (1496568).

Almost surely, 2^5237981 is an apocalyptic number.

It is an amenable number.

5237981 is a deficient number, since it is larger than the sum of its proper divisors (748291).

5237981 is an equidigital number, since it uses as much as digits as its factorization.

5237981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748290.

The product of its digits is 15120, while the sum is 35.

The square root of 5237981 is about 2288.6635838410. The cubic root of 5237981 is about 173.6686011764.

The spelling of 5237981 in words is "five million, two hundred thirty-seven thousand, nine hundred eighty-one".