7898725 has 6 divisors (see below), whose sum is σ = 9794450. Its totient is φ = 6318960.

The previous prime is 7898687. The next prime is 7898731. The reversal of 7898725 is 5278987.

7898725 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 159201 + 7739524 = 399^2 + 2782^2 .

It is not a de Polignac number, because 7898725 - 2⁹ = 7898213 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 157950 + ... + 157999.

Almost surely, 2^7898725 is an apocalyptic number.

It is an amenable number.

7898725 is a deficient number, since it is larger than the sum of its proper divisors (1895725).

7898725 is a wasteful number, since it uses less digits than its factorization.

7898725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315959 (or 315954 counting only the distinct ones).

The product of its digits is 282240, while the sum is 46.

The square root of 7898725 is about 2810.4670430375. The cubic root of 7898725 is about 199.1524550782.

The spelling of 7898725 in words is "seven million, eight hundred ninety-eight thousand, seven hundred twenty-five".