823730051 has 2 divisors, whose sum is σ = 823730052. Its totient is φ = 823730050.

The previous prime is 823730041. The next prime is 823730069. The reversal of 823730051 is 150037328.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 823730051 - 2⁶ = 823729987 is a prime.

It is a super-3 number, since 3×823730051³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 823729996 and 823730023.

It is not a weakly prime, because it can be changed into another prime (823730041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411865025 + 411865026.

It is an arithmetic number, because the mean of its divisors is an integer number (411865026).

Almost surely, 2^823730051 is an apocalyptic number.

823730051 is a deficient number, since it is larger than the sum of its proper divisors (1).

823730051 is an equidigital number, since it uses as much as digits as its factorization.

823730051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 823730051 is about 28700.6977441316. The cubic root of 823730051 is about 937.4072397941.

Adding to 823730051 its reverse (150037328), we get a palindrome (973767379).

The spelling of 823730051 in words is "eight hundred twenty-three million, seven hundred thirty thousand, fifty-one".