823972395 has 16 divisors (see below), whose sum is σ = 1336925952. Its totient is φ = 433261920.

The previous prime is 823972381. The next prime is 823972423. The reversal of 823972395 is 593279328.

It is a happy number.

It is not a de Polignac number, because 823972395 - 2⁵ = 823972363 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385777 + ... + 387906.

It is an arithmetic number, because the mean of its divisors is an integer number (83557872).

Almost surely, 2^823972395 is an apocalyptic number.

823972395 is a deficient number, since it is larger than the sum of its proper divisors (512953557).

823972395 is a wasteful number, since it uses less digits than its factorization.

823972395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773762.

The product of its digits is 816480, while the sum is 48.

The square root of 823972395 is about 28704.9193519160. The cubic root of 823972395 is about 937.4991601770.

The spelling of 823972395 in words is "eight hundred twenty-three million, nine hundred seventy-two thousand, three hundred ninety-five".