387618977 has 8 divisors (see below), whose sum is σ = 410014464. Its totient is φ = 365685408.

The previous prime is 387618971. The next prime is 387618997. The reversal of 387618977 is 779816783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-387618977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387618971) 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 7 ways as a sum of consecutive naturals, for example, 113753 + ... + 117110.

It is an arithmetic number, because the mean of its divisors is an integer number (51251808).

Almost surely, 2^387618977 is an apocalyptic number.

It is an amenable number.

387618977 is a deficient number, since it is larger than the sum of its proper divisors (22395487).

387618977 is a wasteful number, since it uses less digits than its factorization.

387618977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230959.

The product of its digits is 3556224, while the sum is 56.

The square root of 387618977 is about 19688.0414719189. The cubic root of 387618977 is about 729.1244754748.

The spelling of 387618977 in words is "three hundred eighty-seven million, six hundred eighteen thousand, nine hundred seventy-seven".