81068702 has 64 divisors (see below), whose sum is σ = 150764544. Its totient is φ = 32192640.

The previous prime is 81068693. The next prime is 81068707. The reversal of 81068702 is 20786018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81068707) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 497273 + ... + 497435.

It is an arithmetic number, because the mean of its divisors is an integer number (2355696).

Almost surely, 2^81068702 is an apocalyptic number.

81068702 is a deficient number, since it is larger than the sum of its proper divisors (69695842).

81068702 is a wasteful number, since it uses less digits than its factorization.

81068702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 81068702 is about 9003.8159687990. The cubic root of 81068702 is about 432.7971642148.

The spelling of 81068702 in words is "eighty-one million, sixty-eight thousand, seven hundred two".