388885061 has 2 divisors, whose sum is σ = 388885062. Its totient is φ = 388885060.

The previous prime is 388885039. The next prime is 388885067. The reversal of 388885061 is 160588883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 354004225 + 34880836 = 18815^2 + 5906^2 .

It is a cyclic number.

It is not a de Polignac number, because 388885061 - 2¹⁴ = 388868677 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 388884997 and 388885015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (388885067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194442530 + 194442531.

It is an arithmetic number, because the mean of its divisors is an integer number (194442531).

Almost surely, 2^388885061 is an apocalyptic number.

It is an amenable number.

388885061 is a deficient number, since it is larger than the sum of its proper divisors (1).

388885061 is an equidigital number, since it uses as much as digits as its factorization.

388885061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 368640, while the sum is 47.

The square root of 388885061 is about 19720.1688887291. The cubic root of 388885061 is about 729.9174617383.

The spelling of 388885061 in words is "three hundred eighty-eight million, eight hundred eighty-five thousand, sixty-one".