38665897 has 8 divisors (see below), whose sum is σ = 40282880. Its totient is φ = 37072080.

The previous prime is 38665883. The next prime is 38665919. The reversal of 38665897 is 79856683.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38665897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38665807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2343 + ... + 9100.

It is an arithmetic number, because the mean of its divisors is an integer number (5035360).

Almost surely, 2^38665897 is an apocalyptic number.

It is an amenable number.

38665897 is a deficient number, since it is larger than the sum of its proper divisors (1616983).

38665897 is a wasteful number, since it uses less digits than its factorization.

38665897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11583.

The product of its digits is 2177280, while the sum is 52.

The square root of 38665897 is about 6218.1908140552. The cubic root of 38665897 is about 338.1499777913.

The spelling of 38665897 in words is "thirty-eight million, six hundred sixty-five thousand, eight hundred ninety-seven".