3408247 has 2 divisors, whose sum is σ = 3408248. Its totient is φ = 3408246.

The previous prime is 3408241. The next prime is 3408259. The reversal of 3408247 is 7428043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3408247 - 2¹⁵ = 3375479 is a prime.

It is a super-2 number, since 2×3408247² = 23232295226018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3408241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1704123 + 1704124.

It is an arithmetic number, because the mean of its divisors is an integer number (1704124).

Almost surely, 2^3408247 is an apocalyptic number.

3408247 is a deficient number, since it is larger than the sum of its proper divisors (1).

3408247 is an equidigital number, since it uses as much as digits as its factorization.

3408247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 3408247 is about 1846.1438188830. The cubic root of 3408247 is about 150.4909395840.

It can be divided in two parts, 3408 and 247, that added together give a triangular number (3655 = T₈₅).

The spelling of 3408247 in words is "three million, four hundred eight thousand, two hundred forty-seven".