388087587397 has 2 divisors, whose sum is σ = 388087587398. Its totient is φ = 388087587396.

The previous prime is 388087587301. The next prime is 388087587403. The reversal of 388087587397 is 793785780883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228088387396 + 159999200001 = 477586^2 + 399999^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-388087587397 is a prime.

It is a super-2 number, since 2×388087587397² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (388087585397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194043793698 + 194043793699.

It is an arithmetic number, because the mean of its divisors is an integer number (194043793699).

Almost surely, 2^388087587397 is an apocalyptic number.

It is an amenable number.

388087587397 is a deficient number, since it is larger than the sum of its proper divisors (1).

388087587397 is an equidigital number, since it uses as much as digits as its factorization.

388087587397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 568995840, while the sum is 73.

The spelling of 388087587397 in words is "three hundred eighty-eight billion, eighty-seven million, five hundred eighty-seven thousand, three hundred ninety-seven".