823039401 has 16 divisors (see below), whose sum is σ = 1136116800. Its totient is φ = 529357248.

The previous prime is 823039391. The next prime is 823039417. The reversal of 823039401 is 104930328.

It is not a de Polignac number, because 823039401 - 2¹⁴ = 823023017 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (823039501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139530 + ... + 145308.

It is an arithmetic number, because the mean of its divisors is an integer number (71007300).

Almost surely, 2^823039401 is an apocalyptic number.

It is an amenable number.

823039401 is a deficient number, since it is larger than the sum of its proper divisors (313077399).

823039401 is a wasteful number, since it uses less digits than its factorization.

823039401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7448.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 823039401 is about 28688.6632836039. The cubic root of 823039401 is about 937.1451792905.

Adding to 823039401 its reverse (104930328), we get a palindrome (927969729).

The spelling of 823039401 in words is "eight hundred twenty-three million, thirty-nine thousand, four hundred one".