8725005 has 24 divisors (see below), whose sum is σ = 15495480. Its totient is φ = 4538880.

The previous prime is 8724983. The next prime is 8725021. The reversal of 8725005 is 5005278.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 670761 + 8054244 = 819^2 + 2838^2 .

It is not a de Polignac number, because 8725005 - 2⁹ = 8724493 is a prime.

It is a super-2 number, since 2×8725005² = 152251424500050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8725005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 520 + ... + 4209.

It is an arithmetic number, because the mean of its divisors is an integer number (645645).

Almost surely, 2^8725005 is an apocalyptic number.

It is an amenable number.

8725005 is a deficient number, since it is larger than the sum of its proper divisors (6770475).

8725005 is a wasteful number, since it uses less digits than its factorization.

8725005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4781 (or 4778 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 8725005 is about 2953.8119439125. The cubic root of 8725005 is about 205.8678654311.

The spelling of 8725005 in words is "eight million, seven hundred twenty-five thousand, five".