387855023 has 2 divisors, whose sum is σ = 387855024. Its totient is φ = 387855022.

The previous prime is 387855001. The next prime is 387855029. The reversal of 387855023 is 320558783.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 387855023 - 2⁶ = 387854959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (387855029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193927511 + 193927512.

It is an arithmetic number, because the mean of its divisors is an integer number (193927512).

Almost surely, 2^387855023 is an apocalyptic number.

387855023 is a deficient number, since it is larger than the sum of its proper divisors (1).

387855023 is an equidigital number, since it uses as much as digits as its factorization.

387855023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 387855023 is about 19694.0352137392. The cubic root of 387855023 is about 729.2724489593.

The spelling of 387855023 in words is "three hundred eighty-seven million, eight hundred fifty-five thousand, twenty-three".