387266285 has 16 divisors (see below), whose sum is σ = 531812736. Its totient is φ = 265201728.

The previous prime is 387266281. The next prime is 387266293. The reversal of 387266285 is 582662783.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 387266285 - 2² = 387266281 is a prime.

It is a super-3 number, since 3×387266285³ (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387266281) 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 in 15 ways as a sum of consecutive naturals, for example, 20954 + ... + 34836.

It is an arithmetic number, because the mean of its divisors is an integer number (33238296).

Almost surely, 2^387266285 is an apocalyptic number.

387266285 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

387266285 is a deficient number, since it is larger than the sum of its proper divisors (144546451).

387266285 is a wasteful number, since it uses less digits than its factorization.

387266285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14692.

The product of its digits is 967680, while the sum is 47.

The square root of 387266285 is about 19679.0824227147. The cubic root of 387266285 is about 728.9032664876.

The spelling of 387266285 in words is "three hundred eighty-seven million, two hundred sixty-six thousand, two hundred eighty-five".