3906736 has 40 divisors (see below), whose sum is σ = 8195904. Its totient is φ = 1797120.

The previous prime is 3906733. The next prime is 3906751. The reversal of 3906736 is 6376093.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3906731) 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, 14281 + ... + 14551.

Almost surely, 2^3906736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3906736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4097952).

3906736 is an abundant number, since it is smaller than the sum of its proper divisors (4289168).

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

3906736 is a wasteful number, since it uses less digits than its factorization.

3906736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 34.

The square root of 3906736 is about 1976.5464831367. The cubic root of 3906736 is about 157.4966623967.

The spelling of 3906736 in words is "three million, nine hundred six thousand, seven hundred thirty-six".