81060708 has 24 divisors (see below), whose sum is σ = 190526112. Its totient is φ = 26822464.

The previous prime is 81060703. The next prime is 81060737. The reversal of 81060708 is 80706018.

It is a super-2 number, since 2×81060708² = 13141676762922528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (81060703) 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 7 ways as a sum of consecutive naturals, for example, 23010 + ... + 26297.

It is an arithmetic number, because the mean of its divisors is an integer number (7938588).

Almost surely, 2^81060708 is an apocalyptic number.

It is an amenable number.

81060708 is an abundant number, since it is smaller than the sum of its proper divisors (109465404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

81060708 is a wasteful number, since it uses less digits than its factorization.

81060708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49451 (or 49449 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 81060708 is about 9003.3720349656. The cubic root of 81060708 is about 432.7829380331.

The spelling of 81060708 in words is "eighty-one million, sixty thousand, seven hundred eight".