3909738 has 16 divisors (see below), whose sum is σ = 8936640. Its totient is φ = 1117056.

The previous prime is 3909733. The next prime is 3909739. The reversal of 3909738 is 8379093.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3909696 and 3909705.

It is not an unprimeable number, because it can be changed into a prime (3909733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46503 + ... + 46586.

It is an arithmetic number, because the mean of its divisors is an integer number (558540).

Almost surely, 2^3909738 is an apocalyptic number.

3909738 is an abundant number, since it is smaller than the sum of its proper divisors (5026902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3909738 is a wasteful number, since it uses less digits than its factorization.

3909738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93101.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 3909738 is about 1977.3057426711. The cubic root of 3909738 is about 157.5369930742.

The spelling of 3909738 in words is "three million, nine hundred nine thousand, seven hundred thirty-eight".