223620775 has 12 divisors (see below), whose sum is σ = 316902832. Its totient is φ = 153339840.

The previous prime is 223620773. The next prime is 223620779. The reversal of 223620775 is 577026322.

It is not a de Polignac number, because 223620775 - 2¹ = 223620773 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 223620775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223620773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 638742 + ... + 639091.

Almost surely, 2^223620775 is an apocalyptic number.

223620775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

223620775 is a deficient number, since it is larger than the sum of its proper divisors (93282057).

223620775 is a wasteful number, since it uses less digits than its factorization.

223620775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277850 (or 1277845 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 223620775 is about 14953.9551624311. The cubic root of 223620775 is about 606.9748774373.

The spelling of 223620775 in words is "two hundred twenty-three million, six hundred twenty thousand, seven hundred seventy-five".