825249846 has 16 divisors (see below), whose sum is σ = 1677557808. Its totient is φ = 270573600.

The previous prime is 825249809. The next prime is 825249847. The reversal of 825249846 is 648942528.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 825249795 and 825249804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825249847) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1127025 + ... + 1127756.

It is an arithmetic number, because the mean of its divisors is an integer number (104847363).

Almost surely, 2^825249846 is an apocalyptic number.

825249846 is an abundant number, since it is smaller than the sum of its proper divisors (852307962).

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

825249846 is a wasteful number, since it uses less digits than its factorization.

825249846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2254847.

The product of its digits is 1105920, while the sum is 48.

The square root of 825249846 is about 28727.1621640565. The cubic root of 825249846 is about 937.9833960051.

The spelling of 825249846 in words is "eight hundred twenty-five million, two hundred forty-nine thousand, eight hundred forty-six".