38196217 has 4 divisors (see below), whose sum is σ = 38209360. Its totient is φ = 38183076.

The previous prime is 38196209. The next prime is 38196233. The reversal of 38196217 is 71269183.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 71269183 = 4549 ⋅15667.

It is a cyclic number.

It is not a de Polignac number, because 38196217 - 2³ = 38196209 is a prime.

It is a super-2 number, since 2×38196217² = 2917901986222178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38196287) 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, 63 + ... + 8740.

It is an arithmetic number, because the mean of its divisors is an integer number (9552340).

Almost surely, 2^38196217 is an apocalyptic number.

It is an amenable number.

38196217 is a deficient number, since it is larger than the sum of its proper divisors (13143).

38196217 is an equidigital number, since it uses as much as digits as its factorization.

38196217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13142.

The product of its digits is 18144, while the sum is 37.

The square root of 38196217 is about 6180.3088110547. The cubic root of 38196217 is about 336.7752113270.

The spelling of 38196217 in words is "thirty-eight million, one hundred ninety-six thousand, two hundred seventeen".