387686801 has 2 divisors, whose sum is σ = 387686802. Its totient is φ = 387686800.

The previous prime is 387686743. The next prime is 387686807. The reversal of 387686801 is 108686783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 385729600 + 1957201 = 19640^2 + 1399^2 .

It is a cyclic number.

It is not a de Polignac number, because 387686801 - 2⁶ = 387686737 is a prime.

It is a super-3 number, since 3×387686801³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (387686807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193843400 + 193843401.

It is an arithmetic number, because the mean of its divisors is an integer number (193843401).

Almost surely, 2^387686801 is an apocalyptic number.

It is an amenable number.

387686801 is a deficient number, since it is larger than the sum of its proper divisors (1).

387686801 is an equidigital number, since it uses as much as digits as its factorization.

387686801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 387686801 is about 19689.7638634901. The cubic root of 387686801 is about 729.1669994114.

The spelling of 387686801 in words is "three hundred eighty-seven million, six hundred eighty-six thousand, eight hundred one".