223508947 has 2 divisors, whose sum is σ = 223508948. Its totient is φ = 223508946.

The previous prime is 223508927. The next prime is 223508953. The reversal of 223508947 is 749805322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223508947 - 2²⁷ = 89291219 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (223508927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111754473 + 111754474.

It is an arithmetic number, because the mean of its divisors is an integer number (111754474).

Almost surely, 2^223508947 is an apocalyptic number.

223508947 is a deficient number, since it is larger than the sum of its proper divisors (1).

223508947 is an equidigital number, since it uses as much as digits as its factorization.

223508947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 223508947 is about 14950.2156171742. The cubic root of 223508947 is about 606.8736821521.

The spelling of 223508947 in words is "two hundred twenty-three million, five hundred eight thousand, nine hundred forty-seven".