80667481 has 2 divisors, whose sum is σ = 80667482. Its totient is φ = 80667480.

The previous prime is 80667443. The next prime is 80667493. The reversal of 80667481 is 18476608.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48177481 + 32490000 = 6941^2 + 5700^2 .

It is a cyclic number.

It is not a de Polignac number, because 80667481 - 2²¹ = 78570329 is a prime.

It is a super-2 number, since 2×80667481² = 13014484981770722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80667421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40333740 + 40333741.

It is an arithmetic number, because the mean of its divisors is an integer number (40333741).

Almost surely, 2^80667481 is an apocalyptic number.

It is an amenable number.

80667481 is a deficient number, since it is larger than the sum of its proper divisors (1).

80667481 is an equidigital number, since it uses as much as digits as its factorization.

80667481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 80667481 is about 8981.5077242076. The cubic root of 80667481 is about 432.0819906820.

The spelling of 80667481 in words is "eighty million, six hundred sixty-seven thousand, four hundred eighty-one".