869530725 has 144 divisors (see below), whose sum is σ = 1915056000. Its totient is φ = 375943680.

The previous prime is 869530723. The next prime is 869530729. The reversal of 869530725 is 527035968.

It is a happy number.

It is not a de Polignac number, because 869530725 - 2¹ = 869530723 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

Together with 1045525275 it forms an amicable pair .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869530723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1466029 + ... + 1466621.

It is an arithmetic number, because the mean of its divisors is an integer number (13299000).

Almost surely, 2^869530725 is an apocalyptic number.

It is an amenable number.

869530725 is an abundant number, since it is smaller than the sum of its proper divisors (1045525275).

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

869530725 is a wasteful number, since it uses less digits than its factorization.

869530725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 869530725 is about 29487.8063782303. The cubic root of 869530725 is about 954.4685968421.

The spelling of 869530725 in words is "eight hundred sixty-nine million, five hundred thirty thousand, seven hundred twenty-five".