7988437 has 2 divisors, whose sum is σ = 7988438. Its totient is φ = 7988436.

The previous prime is 7988413. The next prime is 7988441. The reversal of 7988437 is 7348897.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6765201 + 1223236 = 2601^2 + 1106^2 .

It is an emirp because it is prime and its reverse (7348897) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7988437 - 2¹¹ = 7986389 is a prime.

It is a super-3 number, since 3×7988437³ (a number of 22 digits) contains 333 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 (7988237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3994218 + 3994219.

It is an arithmetic number, because the mean of its divisors is an integer number (3994219).

Almost surely, 2^7988437 is an apocalyptic number.

It is an amenable number.

7988437 is a deficient number, since it is larger than the sum of its proper divisors (1).

7988437 is an equidigital number, since it uses as much as digits as its factorization.

7988437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 46.

The square root of 7988437 is about 2826.3823166727. The cubic root of 7988437 is about 199.9035952047.

The spelling of 7988437 in words is "seven million, nine hundred eighty-eight thousand, four hundred thirty-seven".