81852935 has 16 divisors (see below), whose sum is σ = 103537440. Its totient is φ = 62025600.

The previous prime is 81852899. The next prime is 81852937. The reversal of 81852935 is 53925818.

It is not a de Polignac number, because 81852935 - 2⁶ = 81852871 is a prime.

It is a super-2 number, since 2×81852935² = 13399805936228450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 81852892 and 81852901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81852937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2360 + ... + 13010.

It is an arithmetic number, because the mean of its divisors is an integer number (6471090).

Almost surely, 2^81852935 is an apocalyptic number.

81852935 is a deficient number, since it is larger than the sum of its proper divisors (21684505).

81852935 is a wasteful number, since it uses less digits than its factorization.

81852935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10738.

The product of its digits is 86400, while the sum is 41.

The square root of 81852935 is about 9047.2611877850. The cubic root of 81852935 is about 434.1882690997.

The spelling of 81852935 in words is "eighty-one million, eight hundred fifty-two thousand, nine hundred thirty-five".