38870017 has 6 divisors (see below), whose sum is σ = 39950358. Its totient is φ = 37818144.

The previous prime is 38870003. The next prime is 38870021. The reversal of 38870017 is 71007883.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 32764176 + 6105841 = 5724^2 + 2471^2 .

It is a de Polignac number, because none of the positive numbers 2^k-38870017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38870057) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12828 + ... + 15565.

It is an arithmetic number, because the mean of its divisors is an integer number (6658393).

Almost surely, 2^38870017 is an apocalyptic number.

38870017 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

38870017 is a deficient number, since it is larger than the sum of its proper divisors (1080341).

38870017 is an equidigital number, since it uses as much as digits as its factorization.

38870017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28467 (or 28430 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 38870017 is about 6234.5823436699. The cubic root of 38870017 is about 338.7439729687.

It can be divided in two parts, 38 and 870017, that multiplied together give a triangular number (33060646 = T₈₁₃₁).

The spelling of 38870017 in words is "thirty-eight million, eight hundred seventy thousand, seventeen".