3938678 has 8 divisors (see below), whose sum is σ = 5922072. Its totient is φ = 1964656.

The previous prime is 3938657. The next prime is 3938699. The reversal of 3938678 is 8768393.

It is an interprime number because it is at equal distance from previous prime (3938657) and next prime (3938699).

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

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, 1175 + ... + 3042.

It is an arithmetic number, because the mean of its divisors is an integer number (740259).

Almost surely, 2^3938678 is an apocalyptic number.

3938678 is a deficient number, since it is larger than the sum of its proper divisors (1983394).

3938678 is a wasteful number, since it uses less digits than its factorization.

3938678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4686.

The product of its digits is 217728, while the sum is 44.

The square root of 3938678 is about 1984.6102892004. The cubic root of 3938678 is about 157.9247358244.

The spelling of 3938678 in words is "three million, nine hundred thirty-eight thousand, six hundred seventy-eight".