38681697 has 4 divisors (see below), whose sum is σ = 51575600. Its totient is φ = 25787796.

The previous prime is 38681683. The next prime is 38681717. The reversal of 38681697 is 79618683.

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.

It is not a de Polignac number, because 38681697 - 2⁶ = 38681633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38681627) 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, 6446947 + ... + 6446952.

It is an arithmetic number, because the mean of its divisors is an integer number (12893900).

Almost surely, 2^38681697 is an apocalyptic number.

It is an amenable number.

38681697 is a deficient number, since it is larger than the sum of its proper divisors (12893903).

38681697 is a wasteful number, since it uses less digits than its factorization.

38681697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12893902.

The product of its digits is 435456, while the sum is 48.

The square root of 38681697 is about 6219.4611502927. The cubic root of 38681697 is about 338.1960307949.

It can be divided in two parts, 3868 and 1697, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 38681697 in words is "thirty-eight million, six hundred eighty-one thousand, six hundred ninety-seven".