387478 has 16 divisors (see below), whose sum is σ = 715680. Its totient is φ = 153216.

The previous prime is 387463. The next prime is 387493. The reversal of 387478 is 874783.

It is an interprime number because it is at equal distance from previous prime (387463) and next prime (387493).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 883 + ... + 1246.

It is an arithmetic number, because the mean of its divisors is an integer number (44730).

2³⁸⁷⁴⁷⁸ is an apocalyptic number.

387478 is a deficient number, since it is larger than the sum of its proper divisors (328202).

387478 is a wasteful number, since it uses less digits than its factorization.

387478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151.

The product of its digits is 37632, while the sum is 37.

The square root of 387478 is about 622.4773088234. The cubic root of 387478 is about 72.9036070579.

The spelling of 387478 in words is "three hundred eighty-seven thousand, four hundred seventy-eight".