387880533 has 24 divisors (see below), whose sum is σ = 590029440. Its totient is φ = 245060640.

The previous prime is 387880531. The next prime is 387880547. The reversal of 387880533 is 335088783.

It is a happy number.

387880533 is a `hidden beast` number, since 38 + 7 + 8 + 80 + 533 = 666.

It is not a de Polignac number, because 387880533 - 2¹ = 387880531 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387880531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13968 + ... + 31158.

It is an arithmetic number, because the mean of its divisors is an integer number (24584560).

Almost surely, 2^387880533 is an apocalyptic number.

It is an amenable number.

387880533 is a deficient number, since it is larger than the sum of its proper divisors (202148907).

387880533 is a wasteful number, since it uses less digits than its factorization.

387880533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17329 (or 17326 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 387880533 is about 19694.6828611176. The cubic root of 387880533 is about 729.2884371776.

The spelling of 387880533 in words is "three hundred eighty-seven million, eight hundred eighty thousand, five hundred thirty-three".