7981037 has 2 divisors, whose sum is σ = 7981038. Its totient is φ = 7981036.

The previous prime is 7981033. The next prime is 7981049. The reversal of 7981037 is 7301897.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7123561 + 857476 = 2669^2 + 926^2 .

It is an emirp because it is prime and its reverse (7301897) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7981037 - 2² = 7981033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7980988 and 7981006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7981033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3990518 + 3990519.

It is an arithmetic number, because the mean of its divisors is an integer number (3990519).

Almost surely, 2^7981037 is an apocalyptic number.

It is an amenable number.

7981037 is a deficient number, since it is larger than the sum of its proper divisors (1).

7981037 is an equidigital number, since it uses as much as digits as its factorization.

7981037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 7981037 is about 2825.0729194129. The cubic root of 7981037 is about 199.8418499758.

The spelling of 7981037 in words is "seven million, nine hundred eighty-one thousand, thirty-seven".