7444981 has 2 divisors, whose sum is σ = 7444982. Its totient is φ = 7444980.

The previous prime is 7444961. The next prime is 7444993. The reversal of 7444981 is 1894447.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5904900 + 1540081 = 2430^2 + 1241^2 .

It is a cyclic number.

It is not a de Polignac number, because 7444981 - 2⁵ = 7444949 is a prime.

It is a super-2 number, since 2×7444981² = 110855484180722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7444981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7444951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3722490 + 3722491.

It is an arithmetic number, because the mean of its divisors is an integer number (3722491).

Almost surely, 2^7444981 is an apocalyptic number.

It is an amenable number.

7444981 is a deficient number, since it is larger than the sum of its proper divisors (1).

7444981 is an equidigital number, since it uses as much as digits as its factorization.

7444981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 37.

The square root of 7444981 is about 2728.5492482270. The cubic root of 7444981 is about 195.2635577123.

The spelling of 7444981 in words is "seven million, four hundred forty-four thousand, nine hundred eighty-one".