825789946 has 4 divisors (see below), whose sum is σ = 1238684922. Its totient is φ = 412894972.

The previous prime is 825789929. The next prime is 825789959. The reversal of 825789946 is 649987528.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 785961225 + 39828721 = 28035^2 + 6311^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206447485 + ... + 206447488.

Almost surely, 2^825789946 is an apocalyptic number.

825789946 is a deficient number, since it is larger than the sum of its proper divisors (412894976).

825789946 is a wasteful number, since it uses less digits than its factorization.

825789946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412894975.

The product of its digits is 8709120, while the sum is 58.

The square root of 825789946 is about 28736.5611373386. The cubic root of 825789946 is about 938.1879782319.

The spelling of 825789946 in words is "eight hundred twenty-five million, seven hundred eighty-nine thousand, nine hundred forty-six".