63572779 has 2 divisors, whose sum is σ = 63572780. Its totient is φ = 63572778.

The previous prime is 63572777. The next prime is 63572807. The reversal of 63572779 is 97727536.

It is a happy number.

63572779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63572779 - 2¹ = 63572777 is a prime.

Together with 63572777, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (63572777) 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, 31786389 + 31786390.

It is an arithmetic number, because the mean of its divisors is an integer number (31786390).

Almost surely, 2^63572779 is an apocalyptic number.

63572779 is a deficient number, since it is larger than the sum of its proper divisors (1).

63572779 is an equidigital number, since it uses as much as digits as its factorization.

63572779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 555660, while the sum is 46.

The square root of 63572779 is about 7973.2539781447. The cubic root of 63572779 is about 399.1079684280.

The spelling of 63572779 in words is "sixty-three million, five hundred seventy-two thousand, seven hundred seventy-nine".