823948051 has 2 divisors, whose sum is σ = 823948052. Its totient is φ = 823948050.

The previous prime is 823948031. The next prime is 823948057. The reversal of 823948051 is 150849328.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 823948051 - 2¹³ = 823939859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 823947995 and 823948013.

It is not a weakly prime, because it can be changed into another prime (823948057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411974025 + 411974026.

It is an arithmetic number, because the mean of its divisors is an integer number (411974026).

Almost surely, 2^823948051 is an apocalyptic number.

823948051 is a deficient number, since it is larger than the sum of its proper divisors (1).

823948051 is an equidigital number, since it uses as much as digits as its factorization.

823948051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 823948051 is about 28704.4953099684. The cubic root of 823948051 is about 937.4899273821.

The spelling of 823948051 in words is "eight hundred twenty-three million, nine hundred forty-eight thousand, fifty-one".