8381772 has 48 divisors (see below), whose sum is σ = 24837120. Its totient is φ = 2394576.

The previous prime is 8381719. The next prime is 8381777. The reversal of 8381772 is 2771838.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (8381777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4788 + ... + 6299.

It is an arithmetic number, because the mean of its divisors is an integer number (517440).

Almost surely, 2^8381772 is an apocalyptic number.

It is an amenable number.

8381772 is an abundant number, since it is smaller than the sum of its proper divisors (16455348).

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

8381772 is a wasteful number, since it uses less digits than its factorization.

8381772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11107 (or 11099 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 8381772 is about 2895.1290126694. The cubic root of 8381772 is about 203.1321262036.

The spelling of 8381772 in words is "eight million, three hundred eighty-one thousand, seven hundred seventy-two".