38890001 has 8 divisors (see below), whose sum is σ = 39897000. Its totient is φ = 37895040.

The previous prime is 38889989. The next prime is 38890003. The reversal of 38890001 is 10009883.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 462400 + 38427601 = 680^2 + 6199^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 38890001 - 2¹⁰ = 38888977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38890003) 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, 3725 + ... + 9573.

It is an arithmetic number, because the mean of its divisors is an integer number (4987125).

Almost surely, 2^38890001 is an apocalyptic number.

It is an amenable number.

38890001 is a deficient number, since it is larger than the sum of its proper divisors (1006999).

38890001 is a wasteful number, since it uses less digits than its factorization.

38890001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6019.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 38890001 is about 6236.1848112448. The cubic root of 38890001 is about 338.8020151333.

Adding to 38890001 its reverse (10009883), we get a palindrome (48899884).

The spelling of 38890001 in words is "thirty-eight million, eight hundred ninety thousand, one".