7985437 has 2 divisors, whose sum is σ = 7985438. Its totient is φ = 7985436.

The previous prime is 7985431. The next prime is 7985489. The reversal of 7985437 is 7345897.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7458361 + 527076 = 2731^2 + 726^2 .

It is a cyclic number.

It is not a de Polignac number, because 7985437 - 2³ = 7985429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7985393 and 7985402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7985431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3992718 + 3992719.

It is an arithmetic number, because the mean of its divisors is an integer number (3992719).

Almost surely, 2^7985437 is an apocalyptic number.

It is an amenable number.

7985437 is a deficient number, since it is larger than the sum of its proper divisors (1).

7985437 is an equidigital number, since it uses as much as digits as its factorization.

7985437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 43.

The square root of 7985437 is about 2825.8515530721. The cubic root of 7985437 is about 199.8785679529.

The spelling of 7985437 in words is "seven million, nine hundred eighty-five thousand, four hundred thirty-seven".