223400087 has 2 divisors, whose sum is σ = 223400088. Its totient is φ = 223400086.

The previous prime is 223400083. The next prime is 223400101. The reversal of 223400087 is 780004322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 223400087 - 2² = 223400083 is a prime.

It is a super-3 number, since 3×223400087³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223400083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111700043 + 111700044.

It is an arithmetic number, because the mean of its divisors is an integer number (111700044).

Almost surely, 2^223400087 is an apocalyptic number.

223400087 is a deficient number, since it is larger than the sum of its proper divisors (1).

223400087 is an equidigital number, since it uses as much as digits as its factorization.

223400087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 223400087 is about 14946.5744235929. The cubic root of 223400087 is about 606.7751402393.

The spelling of 223400087 in words is "two hundred twenty-three million, four hundred thousand, eighty-seven".