223406357 has 2 divisors, whose sum is σ = 223406358. Its totient is φ = 223406356.

The previous prime is 223406329. The next prime is 223406377. The reversal of 223406357 is 753604322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136562596 + 86843761 = 11686^2 + 9319^2 .

It is a cyclic number.

It is not a de Polignac number, because 223406357 - 2⁸ = 223406101 is a prime.

It is a super-2 number, since 2×223406357² = 99820800696022898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223406327) 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, 111703178 + 111703179.

It is an arithmetic number, because the mean of its divisors is an integer number (111703179).

Almost surely, 2^223406357 is an apocalyptic number.

It is an amenable number.

223406357 is a deficient number, since it is larger than the sum of its proper divisors (1).

223406357 is an equidigital number, since it uses as much as digits as its factorization.

223406357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 223406357 is about 14946.7841691783. The cubic root of 223406357 is about 606.7808168181.

The spelling of 223406357 in words is "two hundred twenty-three million, four hundred six thousand, three hundred fifty-seven".