623387 has 2 divisors, whose sum is σ = 623388. Its totient is φ = 623386.

The previous prime is 623383. The next prime is 623393. The reversal of 623387 is 783326.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 623387 - 2² = 623383 is a prime.

It is a super-2 number, since 2×623387² = 777222703538, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 623387.

It is not a weakly prime, because it can be changed into another prime (623383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311693 + 311694.

It is an arithmetic number, because the mean of its divisors is an integer number (311694).

2⁶²³³⁸⁷ is an apocalyptic number.

623387 is a deficient number, since it is larger than the sum of its proper divisors (1).

623387 is an equidigital number, since it uses as much as digits as its factorization.

623387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 29.

The square root of 623387 is about 789.5486052169. The cubic root of 623387 is about 85.4251822034.

The spelling of 623387 in words is "six hundred twenty-three thousand, three hundred eighty-seven".