81754327 has 2 divisors, whose sum is σ = 81754328. Its totient is φ = 81754326.

The previous prime is 81754319. The next prime is 81754331. The reversal of 81754327 is 72345718.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 81754327 - 2³ = 81754319 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (81754307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40877163 + 40877164.

It is an arithmetic number, because the mean of its divisors is an integer number (40877164).

Almost surely, 2^81754327 is an apocalyptic number.

81754327 is a deficient number, since it is larger than the sum of its proper divisors (1).

81754327 is an equidigital number, since it uses as much as digits as its factorization.

81754327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 37.

The square root of 81754327 is about 9041.8099404931. The cubic root of 81754327 is about 434.0138439099.

The spelling of 81754327 in words is "eighty-one million, seven hundred fifty-four thousand, three hundred twenty-seven".