3639734 has 32 divisors (see below), whose sum is σ = 6785856. Its totient is φ = 1428480.

The previous prime is 3639733. The next prime is 3639739. The reversal of 3639734 is 4379363.

It is a Smith number, since the sum of its digits (35) 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 = 3639694 and 3639703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3639733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9572 + ... + 9944.

It is an arithmetic number, because the mean of its divisors is an integer number (212058).

Almost surely, 2^3639734 is an apocalyptic number.

3639734 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

3639734 is a deficient number, since it is larger than the sum of its proper divisors (3146122).

3639734 is a wasteful number, since it uses less digits than its factorization.

3639734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440.

The product of its digits is 40824, while the sum is 35.

The square root of 3639734 is about 1907.8086906186. The cubic root of 3639734 is about 153.8236864498.

The spelling of 3639734 in words is "three million, six hundred thirty-nine thousand, seven hundred thirty-four".