8480981 has 2 divisors, whose sum is σ = 8480982. Its totient is φ = 8480980.

The previous prime is 8480971. The next prime is 8480987. The reversal of 8480981 is 1890848.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8352100 + 128881 = 2890^2 + 359^2 .

It is a cyclic number.

It is not a de Polignac number, because 8480981 - 2¹⁴ = 8464597 is a prime.

It is a super-2 number, since 2×8480981² = 143854077444722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8480987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4240490 + 4240491.

It is an arithmetic number, because the mean of its divisors is an integer number (4240491).

Almost surely, 2^8480981 is an apocalyptic number.

It is an amenable number.

8480981 is a deficient number, since it is larger than the sum of its proper divisors (1).

8480981 is an equidigital number, since it uses as much as digits as its factorization.

8480981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 8480981 is about 2912.2123892326. The cubic root of 8480981 is about 203.9304277047.

The spelling of 8480981 in words is "eight million, four hundred eighty thousand, nine hundred eighty-one".