3908434 has 4 divisors (see below), whose sum is σ = 5862654. Its totient is φ = 1954216.

The previous prime is 3908423. The next prime is 3908441. The reversal of 3908434 is 4348093.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4348093 = 19 ⋅228847.

It can be written as a sum of positive squares in only one way, i.e., 3411409 + 497025 = 1847^2 + 705^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 3908396 and 3908405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977107 + ... + 977110.

Almost surely, 2^3908434 is an apocalyptic number.

3908434 is a deficient number, since it is larger than the sum of its proper divisors (1954220).

3908434 is a wasteful number, since it uses less digits than its factorization.

3908434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954219.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 3908434 is about 1976.9759735515. The cubic root of 3908434 is about 157.5194768892.

The spelling of 3908434 in words is "three million, nine hundred eight thousand, four hundred thirty-four".