81060798 has 96 divisors (see below), whose sum is σ = 205922304. Its totient is φ = 21083328.

The previous prime is 81060787. The next prime is 81060799. The reversal of 81060798 is 89706018.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81060799) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 485311 + ... + 485477.

It is an arithmetic number, because the mean of its divisors is an integer number (2145024).

Almost surely, 2^81060798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 81060798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102961152).

81060798 is an abundant number, since it is smaller than the sum of its proper divisors (124861506).

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

81060798 is a wasteful number, since it uses less digits than its factorization.

81060798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 81060798 is about 9003.3770330915. The cubic root of 81060798 is about 432.7830982030.

The spelling of 81060798 in words is "eighty-one million, sixty thousand, seven hundred ninety-eight".