220352623 has 4 divisors (see below), whose sum is σ = 233314560. Its totient is φ = 207390688.

The previous prime is 220352603. The next prime is 220352651. The reversal of 220352623 is 326253022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220352623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220352603) 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 in 3 ways as a sum of consecutive naturals, for example, 6480943 + ... + 6480976.

It is an arithmetic number, because the mean of its divisors is an integer number (58328640).

Almost surely, 2^220352623 is an apocalyptic number.

220352623 is a deficient number, since it is larger than the sum of its proper divisors (12961937).

220352623 is a wasteful number, since it uses less digits than its factorization.

220352623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12961936.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 220352623 is about 14844.2791337269. The cubic root of 220352623 is about 604.0034345886.

The spelling of 220352623 in words is "two hundred twenty million, three hundred fifty-two thousand, six hundred twenty-three".