38693641 has 4 divisors (see below), whose sum is σ = 44221312. Its totient is φ = 33165972.

The previous prime is 38693617. The next prime is 38693653. The reversal of 38693641 is 14639683.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14639683 = 137 ⋅106859.

It is not a de Polignac number, because 38693641 - 2⁹ = 38693129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38693594 and 38693603.

It is not an unprimeable number, because it can be changed into a prime (38694641) 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, 2763825 + ... + 2763838.

It is an arithmetic number, because the mean of its divisors is an integer number (11055328).

Almost surely, 2^38693641 is an apocalyptic number.

It is an amenable number.

38693641 is a deficient number, since it is larger than the sum of its proper divisors (5527671).

38693641 is an equidigital number, since it uses as much as digits as its factorization.

38693641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5527670.

The product of its digits is 93312, while the sum is 40.

The square root of 38693641 is about 6220.4212879836. The cubic root of 38693641 is about 338.2308362112.

The spelling of 38693641 in words is "thirty-eight million, six hundred ninety-three thousand, six hundred forty-one".