623323147 has 2 divisors, whose sum is σ = 623323148. Its totient is φ = 623323146.

The previous prime is 623323093. The next prime is 623323153. The reversal of 623323147 is 741323326.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 623323147 - 2¹⁵ = 623290379 is a prime.

It is not a weakly prime, because it can be changed into another prime (623323157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311661573 + 311661574.

It is an arithmetic number, because the mean of its divisors is an integer number (311661574).

Almost surely, 2^623323147 is an apocalyptic number.

623323147 is a deficient number, since it is larger than the sum of its proper divisors (1).

623323147 is an equidigital number, since it uses as much as digits as its factorization.

623323147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 31.

The square root of 623323147 is about 24966.4404150852. The cubic root of 623323147 is about 854.2226542761. Note that the first 3 decimals are identical.

The spelling of 623323147 in words is "six hundred twenty-three million, three hundred twenty-three thousand, one hundred forty-seven".