38689847 has 4 divisors (see below), whose sum is σ = 44216976. Its totient is φ = 33162720.

The previous prime is 38689837. The next prime is 38689853. The reversal of 38689847 is 74898683.

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: 74898683 = 47 ⋅1593589.

It is a cyclic number.

It is not a de Polignac number, because 38689847 - 2¹⁴ = 38673463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38689837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2763554 + ... + 2763567.

It is an arithmetic number, because the mean of its divisors is an integer number (11054244).

Almost surely, 2^38689847 is an apocalyptic number.

38689847 is a deficient number, since it is larger than the sum of its proper divisors (5527129).

38689847 is an equidigital number, since it uses as much as digits as its factorization.

38689847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5527128.

The product of its digits is 2322432, while the sum is 53.

The square root of 38689847 is about 6220.1163172404. The cubic root of 38689847 is about 338.2197810809.

The spelling of 38689847 in words is "thirty-eight million, six hundred eighty-nine thousand, eight hundred forty-seven".