81083627 has 2 divisors, whose sum is σ = 81083628. Its totient is φ = 81083626.

The previous prime is 81083617. The next prime is 81083647. The reversal of 81083627 is 72638018.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 81083627 - 2⁸ = 81083371 is a prime.

It is not a weakly prime, because it can be changed into another prime (81083617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40541813 + 40541814.

It is an arithmetic number, because the mean of its divisors is an integer number (40541814).

Almost surely, 2^81083627 is an apocalyptic number.

81083627 is a deficient number, since it is larger than the sum of its proper divisors (1).

81083627 is an equidigital number, since it uses as much as digits as its factorization.

81083627 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 81083627 is about 9004.6447459075. The cubic root of 81083627 is about 432.8237223528.

The spelling of 81083627 in words is "eighty-one million, eighty-three thousand, six hundred twenty-seven".