825796643 has 8 divisors (see below), whose sum is σ = 949224288. Its totient is φ = 703733184.

The previous prime is 825796633. The next prime is 825796649. The reversal of 825796643 is 346697528.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 825796643 - 2⁶ = 825796579 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 825796591 and 825796600.

It is not an unprimeable number, because it can be changed into a prime (825796649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339746 + ... + 342167.

It is an arithmetic number, because the mean of its divisors is an integer number (118653036).

Almost surely, 2^825796643 is an apocalyptic number.

825796643 is a deficient number, since it is larger than the sum of its proper divisors (123427645).

825796643 is a wasteful number, since it uses less digits than its factorization.

825796643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682093.

The product of its digits is 2177280, while the sum is 50.

The square root of 825796643 is about 28736.6776611354. The cubic root of 825796643 is about 938.1905144006.

The spelling of 825796643 in words is "eight hundred twenty-five million, seven hundred ninety-six thousand, six hundred forty-three".