6870825 has 84 divisors (see below), whose sum is σ = 14230860. Its totient is φ = 3265920.

The previous prime is 6870817. The next prime is 6870847. The reversal of 6870825 is 5280786.

6870825 is nontrivially palindromic in base 4.

It can be written as a sum of positive squares in 6 ways, for example, as 700569 + 6170256 = 837^2 + 2484^2 .

It is not a de Polignac number, because 6870825 - 2³ = 6870817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6870825.

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 236911 + ... + 236939.

It is an arithmetic number, because the mean of its divisors is an integer number (169415).

Almost surely, 2^6870825 is an apocalyptic number.

6870825 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6870825 is an abundant number, since it is smaller than the sum of its proper divisors (7360035).

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

6870825 is a wasteful number, since it uses less digits than its factorization.

6870825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 6870825 is about 2621.2258582579. The cubic root of 6870825 is about 190.1091247555.

The spelling of 6870825 in words is "six million, eight hundred seventy thousand, eight hundred twenty-five".