81094700 has 36 divisors (see below), whose sum is σ = 176447040. Its totient is φ = 32351040.

The previous prime is 81094661. The next prime is 81094703. The reversal of 81094700 is 749018.

It is not an unprimeable number, because it can be changed into a prime (81094703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47054 + ... + 48746.

Almost surely, 2^81094700 is an apocalyptic number.

It is an amenable number.

81094700 is an abundant number, since it is smaller than the sum of its proper divisors (95352340).

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

81094700 is a wasteful number, since it uses less digits than its factorization.

81094700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2186 (or 2179 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 81094700 is about 9005.2595742710. The cubic root of 81094700 is about 432.8434239831.

The spelling of 81094700 in words is "eighty-one million, ninety-four thousand, seven hundred".