3408427 has 4 divisors (see below), whose sum is σ = 3718296. Its totient is φ = 3098560.

The previous prime is 3408421. The next prime is 3408437. The reversal of 3408427 is 7248043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7248043 = 11 ⋅658913.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3408427 is a prime.

It is a super-2 number, since 2×3408427² = 23234749228658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3408395 and 3408404.

It is not an unprimeable number, because it can be changed into a prime (3408421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154918 + ... + 154939.

It is an arithmetic number, because the mean of its divisors is an integer number (929574).

Almost surely, 2^3408427 is an apocalyptic number.

3408427 is a deficient number, since it is larger than the sum of its proper divisors (309869).

3408427 is a wasteful number, since it uses less digits than its factorization.

3408427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309868.

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

The square root of 3408427 is about 1846.1925685042. The cubic root of 3408427 is about 150.4935888337.

The spelling of 3408427 in words is "three million, four hundred eight thousand, four hundred twenty-seven".