38753665 has 4 divisors (see below), whose sum is σ = 46504404. Its totient is φ = 31002928.

The previous prime is 38753641. The next prime is 38753677. The reversal of 38753665 is 56635783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56635783 = 877 ⋅64579.

It can be written as a sum of positive squares in 2 ways, for example, as 18395521 + 20358144 = 4289^2 + 4512^2 .

It is a cyclic number.

It is not a de Polignac number, because 38753665 - 2⁵ = 38753633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3875362 + ... + 3875371.

It is an arithmetic number, because the mean of its divisors is an integer number (11626101).

Almost surely, 2^38753665 is an apocalyptic number.

It is an amenable number.

38753665 is a deficient number, since it is larger than the sum of its proper divisors (7750739).

38753665 is an equidigital number, since it uses as much as digits as its factorization.

38753665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7750738.

The product of its digits is 453600, while the sum is 43.

The square root of 38753665 is about 6225.2441719181. The cubic root of 38753665 is about 338.4056408073.

The spelling of 38753665 in words is "thirty-eight million, seven hundred fifty-three thousand, six hundred sixty-five".