387679 has 2 divisors, whose sum is σ = 387680. Its totient is φ = 387678.

The previous prime is 387677. The next prime is 387683. The reversal of 387679 is 976783.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 387679 - 2¹ = 387677 is a prime.

Together with 387677, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (387677) 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 as a sum of consecutive naturals, namely, 193839 + 193840.

It is an arithmetic number, because the mean of its divisors is an integer number (193840).

2³⁸⁷⁶⁷⁹ is an apocalyptic number.

387679 is a deficient number, since it is larger than the sum of its proper divisors (1).

387679 is an equidigital number, since it uses as much as digits as its factorization.

387679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 40.

The square root of 387679 is about 622.6387395593. The cubic root of 387679 is about 72.9162108634.

The spelling of 387679 in words is "three hundred eighty-seven thousand, six hundred seventy-nine".