827149625 has 8 divisors (see below), whose sum is σ = 1032282888. Its totient is φ = 661719600.

The previous prime is 827149619. The next prime is 827149681. The reversal of 827149625 is 526941728.

It is a happy number.

827149625 is digitally balanced in base 2, 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 4 ways, for example, as 182142016 + 645007609 = 13496^2 + 25397^2 .

It is a de Polignac number, because none of the positive numbers 2^k-827149625 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3308474 + ... + 3308723.

It is an arithmetic number, because the mean of its divisors is an integer number (129035361).

Almost surely, 2^827149625 is an apocalyptic number.

It is an amenable number.

827149625 is a deficient number, since it is larger than the sum of its proper divisors (205133263).

827149625 is an equidigital number, since it uses as much as digits as its factorization.

827149625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6617212 (or 6617202 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 827149625 is about 28760.2090569592. The cubic root of 827149625 is about 938.7026107237.

The spelling of 827149625 in words is "eight hundred twenty-seven million, one hundred forty-nine thousand, six hundred twenty-five".