3640837 has 8 divisors (see below), whose sum is σ = 3936800. Its totient is φ = 3355344.

The previous prime is 3640829. The next prime is 3640843. The reversal of 3640837 is 7380463.

3640837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3640837 - 2³ = 3640829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3640799 and 3640808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3640807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1887 + ... + 3292.

It is an arithmetic number, because the mean of its divisors is an integer number (492100).

Almost surely, 2^3640837 is an apocalyptic number.

3640837 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

3640837 is a deficient number, since it is larger than the sum of its proper divisors (295963).

3640837 is a wasteful number, since it uses less digits than its factorization.

3640837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5235.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 3640837 is about 1908.0977438276. The cubic root of 3640837 is about 153.8392233352.

The spelling of 3640837 in words is "three million, six hundred forty thousand, eight hundred thirty-seven".