823238072 has 16 divisors (see below), whose sum is σ = 1558855800. Its totient is φ = 407543200.

The previous prime is 823238071. The next prime is 823238089. The reversal of 823238072 is 270832328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823238071) 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, 508622 + ... + 510237.

Almost surely, 2^823238072 is an apocalyptic number.

It is an amenable number.

823238072 is a deficient number, since it is larger than the sum of its proper divisors (735617728).

823238072 is a wasteful number, since it uses less digits than its factorization.

823238072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018966 (or 1018962 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 823238072 is about 28692.1256096512. The cubic root of 823238072 is about 937.2205781073.

The spelling of 823238072 in words is "eight hundred twenty-three million, two hundred thirty-eight thousand, seventy-two".