3889217 has 2 divisors, whose sum is σ = 3889218. Its totient is φ = 3889216.

The previous prime is 3889201. The next prime is 3889241. The reversal of 3889217 is 7129883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3297856 + 591361 = 1816^2 + 769^2 .

It is a cyclic number.

It is not a de Polignac number, because 3889217 - 2⁴ = 3889201 is a prime.

It is an Ulam number.

It is equal to p₂₇₅₈₇₉ and since 3889217 and 275879 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (3889817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1944608 + 1944609.

It is an arithmetic number, because the mean of its divisors is an integer number (1944609).

Almost surely, 2^3889217 is an apocalyptic number.

It is an amenable number.

3889217 is a deficient number, since it is larger than the sum of its proper divisors (1).

3889217 is an equidigital number, since it uses as much as digits as its factorization.

3889217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 38.

The square root of 3889217 is about 1972.1097839623. The cubic root of 3889217 is about 157.2608885371.

The spelling of 3889217 in words is "three million, eight hundred eighty-nine thousand, two hundred seventeen".