3455861 has 2 divisors, whose sum is σ = 3455862. Its totient is φ = 3455860.

The previous prime is 3455857. The next prime is 3455873. The reversal of 3455861 is 1685543.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1739761 + 1716100 = 1319^2 + 1310^2 .

It is an emirp because it is prime and its reverse (1685543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3455861 - 2² = 3455857 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3455801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1727930 + 1727931.

It is an arithmetic number, because the mean of its divisors is an integer number (1727931).

Almost surely, 2^3455861 is an apocalyptic number.

It is an amenable number.

3455861 is a deficient number, since it is larger than the sum of its proper divisors (1).

3455861 is an equidigital number, since it uses as much as digits as its factorization.

3455861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 32.

The square root of 3455861 is about 1858.9946207561. The cubic root of 3455861 is about 151.1884990039.

The spelling of 3455861 in words is "three million, four hundred fifty-five thousand, eight hundred sixty-one".