387997677 has 24 divisors (see below), whose sum is σ = 570252800. Its totient is φ = 254168928.

The previous prime is 387997669. The next prime is 387997679. The reversal of 387997677 is 776799783.

It is not a de Polignac number, because 387997677 - 2³ = 387997669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387997679) 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 23 ways as a sum of consecutive naturals, for example, 161628 + ... + 164010.

Almost surely, 2^387997677 is an apocalyptic number.

It is an amenable number.

387997677 is a deficient number, since it is larger than the sum of its proper divisors (182255123).

387997677 is a wasteful number, since it uses less digits than its factorization.

387997677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2697 (or 2694 counting only the distinct ones).

The product of its digits is 28005264, while the sum is 63.

The square root of 387997677 is about 19697.6566372754. The cubic root of 387997677 is about 729.3618473804.

The spelling of 387997677 in words is "three hundred eighty-seven million, nine hundred ninety-seven thousand, six hundred seventy-seven".