38688479 has 4 divisors (see below), whose sum is σ = 38740080. Its totient is φ = 38636880.

The previous prime is 38688469. The next prime is 38688487. The reversal of 38688479 is 97488683.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38688479 - 2¹² = 38684383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38688479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38688409) 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, 24659 + ... + 26180.

It is an arithmetic number, because the mean of its divisors is an integer number (9685020).

Almost surely, 2^38688479 is an apocalyptic number.

38688479 is a deficient number, since it is larger than the sum of its proper divisors (51601).

38688479 is an equidigital number, since it uses as much as digits as its factorization.

38688479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51600.

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

The square root of 38688479 is about 6220.0063504791. The cubic root of 38688479 is about 338.2157947628.

The spelling of 38688479 in words is "thirty-eight million, six hundred eighty-eight thousand, four hundred seventy-nine".