825379663 has 4 divisors (see below), whose sum is σ = 825503680. Its totient is φ = 825255648.

The previous prime is 825379661. The next prime is 825379673. The reversal of 825379663 is 366973528.

It is a happy number.

825379663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 825379663 - 2¹ = 825379661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825379661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51423 + ... + 65536.

It is an arithmetic number, because the mean of its divisors is an integer number (206375920).

Almost surely, 2^825379663 is an apocalyptic number.

825379663 is a deficient number, since it is larger than the sum of its proper divisors (124017).

825379663 is a wasteful number, since it uses less digits than its factorization.

825379663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124016.

The product of its digits is 1632960, while the sum is 49.

The square root of 825379663 is about 28729.4215570032. The cubic root of 825379663 is about 938.0325769923.

The spelling of 825379663 in words is "eight hundred twenty-five million, three hundred seventy-nine thousand, six hundred sixty-three".