81034616 has 32 divisors (see below), whose sum is σ = 164004960. Its totient is φ = 37314432.

The previous prime is 81034609. The next prime is 81034619. The reversal of 81034616 is 61643018.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81034619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75701 + ... + 76763.

It is an arithmetic number, because the mean of its divisors is an integer number (5125155).

Almost surely, 2^81034616 is an apocalyptic number.

It is an amenable number.

81034616 is an abundant number, since it is smaller than the sum of its proper divisors (82970344).

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

81034616 is a wasteful number, since it uses less digits than its factorization.

81034616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815 (or 1811 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 81034616 is about 9001.9229056908. The cubic root of 81034616 is about 432.7364980069.

The spelling of 81034616 in words is "eighty-one million, thirty-four thousand, six hundred sixteen".