387668 has 12 divisors (see below), whose sum is σ = 718452. Its totient is φ = 182400.

The previous prime is 387659. The next prime is 387677. The reversal of 387668 is 866783.

It is an interprime number because it is at equal distance from previous prime (387659) and next prime (387677).

It can be written as a sum of positive squares in 2 ways, for example, as 315844 + 71824 = 562^2 + 268^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2783 + ... + 2918.

It is an arithmetic number, because the mean of its divisors is an integer number (59871).

2³⁸⁷⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

387668 is a deficient number, since it is larger than the sum of its proper divisors (330784).

387668 is a wasteful number, since it uses less digits than its factorization.

387668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5722 (or 5720 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 387668 is about 622.6299061240. The cubic root of 387668 is about 72.9155212156.

The spelling of 387668 in words is "three hundred eighty-seven thousand, six hundred sixty-eight".