623332331 has 2 divisors, whose sum is σ = 623332332. Its totient is φ = 623332330.

The previous prime is 623332313. The next prime is 623332349. The reversal of 623332331 is 133233326.

Together with previous prime (623332313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (623332313) and next prime (623332349).

It is a cyclic number.

It is not a de Polignac number, because 623332331 - 2¹⁸ = 623070187 is a prime.

It is a super-2 number, since 2×623332331² = 777086389739787122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 623332331.

It is not a weakly prime, because it can be changed into another prime (623332631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311666165 + 311666166.

It is an arithmetic number, because the mean of its divisors is an integer number (311666166).

Almost surely, 2^623332331 is an apocalyptic number.

623332331 is a deficient number, since it is larger than the sum of its proper divisors (1).

623332331 is an equidigital number, since it uses as much as digits as its factorization.

623332331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 26.

The square root of 623332331 is about 24966.6243413081. The cubic root of 623332331 is about 854.2268496079.

Adding to 623332331 its reverse (133233326), we get a palindrome (756565657).

The spelling of 623332331 in words is "six hundred twenty-three million, three hundred thirty-two thousand, three hundred thirty-one".