8781725 has 6 divisors (see below), whose sum is σ = 10889370. Its totient is φ = 7025360.

The previous prime is 8781713. The next prime is 8781727. The reversal of 8781725 is 5271878.

It can be written as a sum of positive squares in 3 ways, for example, as 8281 + 8773444 = 91^2 + 2962^2 .

It is not a de Polignac number, because 8781725 - 2⁴ = 8781709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8781727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 175610 + ... + 175659.

It is an arithmetic number, because the mean of its divisors is an integer number (1814895).

Almost surely, 2^8781725 is an apocalyptic number.

It is an amenable number.

8781725 is a deficient number, since it is larger than the sum of its proper divisors (2107645).

8781725 is a wasteful number, since it uses less digits than its factorization.

8781725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351279 (or 351274 counting only the distinct ones).

The product of its digits is 31360, while the sum is 38.

The square root of 8781725 is about 2963.3975433613. The cubic root of 8781725 is about 206.3130079916.

The spelling of 8781725 in words is "eight million, seven hundred eighty-one thousand, seven hundred twenty-five".