76481 has 2 divisors, whose sum is σ = 76482. Its totient is φ = 76480.

The previous prime is 76471. The next prime is 76487. The reversal of 76481 is 18467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40000 + 36481 = 200^2 + 191^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76481 is a prime.

It is a super-2 number, since 2×76481² = 11698686722, 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 76481.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 76481.

It is not a weakly prime, because it can be changed into another prime (76487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38240 + 38241.

It is an arithmetic number, because the mean of its divisors is an integer number (38241).

2⁷⁶⁴⁸¹ is an apocalyptic number.

It is an amenable number.

76481 is a deficient number, since it is larger than the sum of its proper divisors (1).

76481 is an equidigital number, since it uses as much as digits as its factorization.

76481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344, while the sum is 26.

The square root of 76481 is about 276.5519842634. The cubic root of 76481 is about 42.4474089973.

The spelling of 76481 in words is "seventy-six thousand, four hundred eighty-one".