38663398 has 4 divisors (see below), whose sum is σ = 57995100. Its totient is φ = 19331698.

The previous prime is 38663393. The next prime is 38663411. The reversal of 38663398 is 89336683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89336683 = 17 ⋅5255099.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38663393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9665848 + ... + 9665851.

It is an arithmetic number, because the mean of its divisors is an integer number (14498775).

Almost surely, 2^38663398 is an apocalyptic number.

38663398 is a deficient number, since it is larger than the sum of its proper divisors (19331702).

38663398 is a wasteful number, since it uses less digits than its factorization.

38663398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19331701.

The product of its digits is 559872, while the sum is 46.

The square root of 38663398 is about 6217.9898681165. The cubic root of 38663398 is about 338.1426926894.

The spelling of 38663398 in words is "thirty-eight million, six hundred sixty-three thousand, three hundred ninety-eight".