7981049 has 2 divisors, whose sum is σ = 7981050. Its totient is φ = 7981048.

The previous prime is 7981037. The next prime is 7981067. The reversal of 7981049 is 9401897.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7661824 + 319225 = 2768^2 + 565^2 .

It is a cyclic number.

It is not a de Polignac number, because 7981049 - 2⁴ = 7981033 is a prime.

It is not a weakly prime, because it can be changed into another prime (7981949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3990524 + 3990525.

It is an arithmetic number, because the mean of its divisors is an integer number (3990525).

Almost surely, 2^7981049 is an apocalyptic number.

It is an amenable number.

7981049 is a deficient number, since it is larger than the sum of its proper divisors (1).

7981049 is an equidigital number, since it uses as much as digits as its factorization.

7981049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 7981049 is about 2825.0750432511. The cubic root of 7981049 is about 199.8419501341.

The spelling of 7981049 in words is "seven million, nine hundred eighty-one thousand, forty-nine".