38936247 has 16 divisors (see below), whose sum is σ = 60936192. Its totient is φ = 21647520.

The previous prime is 38936243. The next prime is 38936269. The reversal of 38936247 is 74263983.

It is not a de Polignac number, because 38936247 - 2² = 38936243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38936199 and 38936208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38936243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24279 + ... + 25832.

It is an arithmetic number, because the mean of its divisors is an integer number (3808512).

Almost surely, 2^38936247 is an apocalyptic number.

38936247 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

38936247 is a deficient number, since it is larger than the sum of its proper divisors (21999945).

38936247 is a wasteful number, since it uses less digits than its factorization.

38936247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50158.

The product of its digits is 217728, while the sum is 42.

The square root of 38936247 is about 6239.8915855967. The cubic root of 38936247 is about 338.9362572783.

The spelling of 38936247 in words is "thirty-eight million, nine hundred thirty-six thousand, two hundred forty-seven".