38117811 has 8 divisors (see below), whose sum is σ = 50889664. Its totient is φ = 25378920.

The previous prime is 38117801. The next prime is 38117813. The reversal of 38117811 is 11871183.

It is a happy number.

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

It is not a de Polignac number, because 38117811 - 2¹⁰ = 38116787 is a prime.

It is a super-4 number, since 4×38117811⁴ (a number of 31 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38117813) 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, 5401 + ... + 10266.

It is an arithmetic number, because the mean of its divisors is an integer number (6361208).

Almost surely, 2^38117811 is an apocalyptic number.

38117811 is a deficient number, since it is larger than the sum of its proper divisors (12771853).

38117811 is a wasteful number, since it uses less digits than its factorization.

38117811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16481.

The product of its digits is 1344, while the sum is 30.

The square root of 38117811 is about 6173.9623419648. The cubic root of 38117811 is about 336.5446188112.

Adding to 38117811 its reverse (11871183), we get a palindrome (49988994).

The spelling of 38117811 in words is "thirty-eight million, one hundred seventeen thousand, eight hundred eleven".