7944437 has 2 divisors, whose sum is σ = 7944438. Its totient is φ = 7944436.

The previous prime is 7944373. The next prime is 7944439. The reversal of 7944437 is 7344497.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4157521 + 3786916 = 2039^2 + 1946^2 .

It is a cyclic number.

It is not a de Polignac number, because 7944437 - 2⁶ = 7944373 is a prime.

It is a super-2 number, since 2×7944437² = 126228158493938, which contains 22 as substring.

Together with 7944439, it forms a pair of twin primes.

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 7944437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7944439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3972218 + 3972219.

It is an arithmetic number, because the mean of its divisors is an integer number (3972219).

Almost surely, 2^7944437 is an apocalyptic number.

It is an amenable number.

7944437 is a deficient number, since it is larger than the sum of its proper divisors (1).

7944437 is an equidigital number, since it uses as much as digits as its factorization.

7944437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 38.

The square root of 7944437 is about 2818.5877669500. The cubic root of 7944437 is about 199.5358988838.

The spelling of 7944437 in words is "seven million, nine hundred forty-four thousand, four hundred thirty-seven".