387334563 has 24 divisors (see below), whose sum is σ = 655381440. Its totient is φ = 201211920.

The previous prime is 387334531. The next prime is 387334603. The reversal of 387334563 is 365433783.

It is a happy number.

It is not a de Polignac number, because 387334563 - 2⁵ = 387334531 is a prime.

It is a super-3 number, since 3×387334563³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (387334163) 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 23 ways as a sum of consecutive naturals, for example, 118153 + ... + 121386.

It is an arithmetic number, because the mean of its divisors is an integer number (27307560).

Almost surely, 2^387334563 is an apocalyptic number.

387334563 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

387334563 is a deficient number, since it is larger than the sum of its proper divisors (268046877).

387334563 is a wasteful number, since it uses less digits than its factorization.

387334563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239567 (or 239560 counting only the distinct ones).

The product of its digits is 544320, while the sum is 42.

The square root of 387334563 is about 19680.8171324262. The cubic root of 387334563 is about 728.9461010389.

The spelling of 387334563 in words is "three hundred eighty-seven million, three hundred thirty-four thousand, five hundred sixty-three".