8115772 has 36 divisors (see below), whose sum is σ = 16892064. Its totient is φ = 3400320.

The previous prime is 8115763. The next prime is 8115791. The reversal of 8115772 is 2775118.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8772 + ... + 9652.

It is an arithmetic number, because the mean of its divisors is an integer number (469224).

Almost surely, 2^8115772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8115772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8446032).

8115772 is an abundant number, since it is smaller than the sum of its proper divisors (8776292).

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

8115772 is a wasteful number, since it uses less digits than its factorization.

8115772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946 (or 937 counting only the distinct ones).

The product of its digits is 3920, while the sum is 31.

The square root of 8115772 is about 2848.8194045955. The cubic root of 8115772 is about 200.9601498517.

The spelling of 8115772 in words is "eight million, one hundred fifteen thousand, seven hundred seventy-two".