8725845 has 32 divisors (see below), whose sum is σ = 15569280. Its totient is φ = 4147200.

The previous prime is 8725841. The next prime is 8725877. The reversal of 8725845 is 5485278.

It is not a de Polignac number, because 8725845 - 2² = 8725841 is a prime.

It is a super-2 number, since 2×8725845² = 152280741928050, which contains 22 as substring.

8725845 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8725841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3945 + ... + 5745.

It is an arithmetic number, because the mean of its divisors is an integer number (486540).

Almost surely, 2^8725845 is an apocalyptic number.

8725845 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8725845 is a deficient number, since it is larger than the sum of its proper divisors (6843435).

8725845 is a wasteful number, since it uses less digits than its factorization.

8725845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1845.

The product of its digits is 89600, while the sum is 39.

The square root of 8725845 is about 2953.9541296371. The cubic root of 8725845 is about 205.8744718632.

The spelling of 8725845 in words is "eight million, seven hundred twenty-five thousand, eight hundred forty-five".