3856734 has 80 divisors (see below), whose sum is σ = 10454400. Its totient is φ = 1038096.

The previous prime is 3856733. The next prime is 3856751. The reversal of 3856734 is 4376583.

It is a happy number.

It is a d-powerful number, because it can be written as 3⁴ + 8⁷ + 5⁷ + 6⁸ + 7 + 3⁶ + 4⁵ .

Its product of digits (60480) is a multiple of the sum of its prime divisors (210).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3856733) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 21457 + ... + 21635.

It is an arithmetic number, because the mean of its divisors is an integer number (130680).

Almost surely, 2^3856734 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3856734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5227200).

3856734 is an abundant number, since it is smaller than the sum of its proper divisors (6597666).

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

3856734 is a wasteful number, since it uses less digits than its factorization.

3856734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 210 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 3856734 is about 1963.8569194318. The cubic root of 3856734 is about 156.8218461423.

The spelling of 3856734 in words is "three million, eight hundred fifty-six thousand, seven hundred thirty-four".