63220823 has 2 divisors, whose sum is σ = 63220824. Its totient is φ = 63220822.

The previous prime is 63220819. The next prime is 63220837. The reversal of 63220823 is 32802236.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63220823 - 2² = 63220819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63220792 and 63220801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63220853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31610411 + 31610412.

It is an arithmetic number, because the mean of its divisors is an integer number (31610412).

Almost surely, 2^63220823 is an apocalyptic number.

63220823 is a deficient number, since it is larger than the sum of its proper divisors (1).

63220823 is an equidigital number, since it uses as much as digits as its factorization.

63220823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 63220823 is about 7951.1523064270. The cubic root of 63220823 is about 398.3700820228.

The spelling of 63220823 in words is "sixty-three million, two hundred twenty thousand, eight hundred twenty-three".