223400407 has 2 divisors, whose sum is σ = 223400408. Its totient is φ = 223400406.

The previous prime is 223400389. The next prime is 223400479. The reversal of 223400407 is 704004322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 223400407 - 2²³ = 215011799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223460407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111700203 + 111700204.

It is an arithmetic number, because the mean of its divisors is an integer number (111700204).

Almost surely, 2^223400407 is an apocalyptic number.

223400407 is a deficient number, since it is larger than the sum of its proper divisors (1).

223400407 is an equidigital number, since it uses as much as digits as its factorization.

223400407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 223400407 is about 14946.5851283830. The cubic root of 223400407 is about 606.7754299557.

Adding to 223400407 its reverse (704004322), we get a palindrome (927404729).

The spelling of 223400407 in words is "two hundred twenty-three million, four hundred thousand, four hundred seven".