35728081 has 2 divisors, whose sum is σ = 35728082. Its totient is φ = 35728080.

The previous prime is 35728073. The next prime is 35728109. The reversal of 35728081 is 18082753.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24059025 + 11669056 = 4905^2 + 3416^2 .

It is a cyclic number.

It is not a de Polignac number, because 35728081 - 2³ = 35728073 is a prime.

It is a super-2 number, since 2×35728081² = 2552991543885122, which contains 22 as substring.

It is equal to p_2188627 and since 35728081 and 2188627 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (35728681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17864040 + 17864041.

It is an arithmetic number, because the mean of its divisors is an integer number (17864041).

Almost surely, 2^35728081 is an apocalyptic number.

It is an amenable number.

35728081 is a deficient number, since it is larger than the sum of its proper divisors (1).

35728081 is an equidigital number, since it uses as much as digits as its factorization.

35728081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 35728081 is about 5977.2971316474. The cubic root of 35728081 is about 329.3592740698.

The spelling of 35728081 in words is "thirty-five million, seven hundred twenty-eight thousand, eighty-one".