387976605 has 16 divisors (see below), whose sum is σ = 621072960. Its totient is φ = 206817408.

The previous prime is 387976591. The next prime is 387976613. The reversal of 387976605 is 506679783.

It is not a de Polignac number, because 387976605 - 2²¹ = 385879453 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 31866 + ... + 42324.

It is an arithmetic number, because the mean of its divisors is an integer number (38817060).

Almost surely, 2^387976605 is an apocalyptic number.

It is an amenable number.

387976605 is a deficient number, since it is larger than the sum of its proper divisors (233096355).

387976605 is a wasteful number, since it uses less digits than its factorization.

387976605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12940.

The product of its (nonzero) digits is 1905120, while the sum is 51.

The square root of 387976605 is about 19697.1217440518. The cubic root of 387976605 is about 729.3486433571.

The spelling of 387976605 in words is "three hundred eighty-seven million, nine hundred seventy-six thousand, six hundred five".