3421867 has 2 divisors, whose sum is σ = 3421868. Its totient is φ = 3421866.

The previous prime is 3421861. The next prime is 3421877. The reversal of 3421867 is 7681243.

It is a weak prime.

It is an emirp because it is prime and its reverse (7681243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3421867 - 2¹⁹ = 2897579 is a prime.

3421867 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3421861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710933 + 1710934.

It is an arithmetic number, because the mean of its divisors is an integer number (1710934).

Almost surely, 2^3421867 is an apocalyptic number.

3421867 is a deficient number, since it is larger than the sum of its proper divisors (1).

3421867 is an equidigital number, since it uses as much as digits as its factorization.

3421867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 31.

The square root of 3421867 is about 1849.8289110077. The cubic root of 3421867 is about 150.6911365700.

It can be divided in two parts, 342 and 1867, that added together give a square (2209 = 47²).

The spelling of 3421867 in words is "three million, four hundred twenty-one thousand, eight hundred sixty-seven".