38398678 has 4 divisors (see below), whose sum is σ = 57598020. Its totient is φ = 19199338.

The previous prime is 38398667. The next prime is 38398681. The reversal of 38398678 is 87689383.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87689383 = 17 ⋅5158199.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9599668 + ... + 9599671.

It is an arithmetic number, because the mean of its divisors is an integer number (14399505).

Almost surely, 2^38398678 is an apocalyptic number.

38398678 is a deficient number, since it is larger than the sum of its proper divisors (19199342).

38398678 is a wasteful number, since it uses less digits than its factorization.

38398678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19199341.

The product of its digits is 1741824, while the sum is 52.

The square root of 38398678 is about 6196.6666845975. Note that the first 4 decimals coincide. The cubic root of 38398678 is about 337.3691944860.

The spelling of 38398678 in words is "thirty-eight million, three hundred ninety-eight thousand, six hundred seventy-eight".