886138997 has 2 divisors, whose sum is σ = 886138998. Its totient is φ = 886138996.

The previous prime is 886138951. The next prime is 886139003. The reversal of 886138997 is 799831688.

886138997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 678029521 + 208109476 = 26039^2 + 14426^2 .

It is a cyclic number.

It is not a de Polignac number, because 886138997 - 2⁶ = 886138933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (886138927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 443069498 + 443069499.

It is an arithmetic number, because the mean of its divisors is an integer number (443069499).

Almost surely, 2^886138997 is an apocalyptic number.

It is an amenable number.

886138997 is a deficient number, since it is larger than the sum of its proper divisors (1).

886138997 is an equidigital number, since it uses as much as digits as its factorization.

886138997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5225472, while the sum is 59.

The square root of 886138997 is about 29768.0868884784. The cubic root of 886138997 is about 960.5071817266.

The spelling of 886138997 in words is "eight hundred eighty-six million, one hundred thirty-eight thousand, nine hundred ninety-seven".