81701467 has 2 divisors, whose sum is σ = 81701468. Its totient is φ = 81701466.

The previous prime is 81701453. The next prime is 81701483. The reversal of 81701467 is 76410718.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 81701467 - 2¹⁹ = 81177179 is a prime.

It is not a weakly prime, because it can be changed into another prime (81701437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40850733 + 40850734.

It is an arithmetic number, because the mean of its divisors is an integer number (40850734).

Almost surely, 2^81701467 is an apocalyptic number.

81701467 is a deficient number, since it is larger than the sum of its proper divisors (1).

81701467 is an equidigital number, since it uses as much as digits as its factorization.

81701467 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 81701467 is about 9038.8863805228. The cubic root of 81701467 is about 433.9202834467.

The spelling of 81701467 in words is "eighty-one million, seven hundred one thousand, four hundred sixty-seven".