387104861 has 16 divisors (see below), whose sum is σ = 456382080. Its totient is φ = 323699520.

The previous prime is 387104849. The next prime is 387104897. The reversal of 387104861 is 168401783.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-387104861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387104561) 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 in 15 ways as a sum of consecutive naturals, for example, 37280 + ... + 46518.

It is an arithmetic number, because the mean of its divisors is an integer number (28523880).

Almost surely, 2^387104861 is an apocalyptic number.

It is an amenable number.

387104861 is a deficient number, since it is larger than the sum of its proper divisors (69277219).

387104861 is a wasteful number, since it uses less digits than its factorization.

387104861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9556.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 387104861 is about 19674.9805844885. The cubic root of 387104861 is about 728.8019762922.

The spelling of 387104861 in words is "three hundred eighty-seven million, one hundred four thousand, eight hundred sixty-one".