3855197 has 2 divisors, whose sum is σ = 3855198. Its totient is φ = 3855196.

The previous prime is 3855179. The next prime is 3855211. The reversal of 3855197 is 7915583.

Together with previous prime (3855179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3463321 + 391876 = 1861^2 + 626^2 .

It is a cyclic number.

It is not a de Polignac number, because 3855197 - 2⁶ = 3855133 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3855197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3855127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1927598 + 1927599.

It is an arithmetic number, because the mean of its divisors is an integer number (1927599).

Almost surely, 2^3855197 is an apocalyptic number.

It is an amenable number.

3855197 is a deficient number, since it is larger than the sum of its proper divisors (1).

3855197 is an equidigital number, since it uses as much as digits as its factorization.

3855197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 38.

The square root of 3855197 is about 1963.4655586488. The cubic root of 3855197 is about 156.8010109655.

The spelling of 3855197 in words is "three million, eight hundred fifty-five thousand, one hundred ninety-seven".