3836945 has 12 divisors (see below), whose sum is σ = 5356404. Its totient is φ = 2630880.

The previous prime is 3836941. The next prime is 3836957. The reversal of 3836945 is 5496383.

It can be written as a sum of positive squares in 2 ways, for example, as 2917264 + 919681 = 1708^2 + 959^2 .

It is not a de Polignac number, because 3836945 - 2² = 3836941 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3836899 and 3836908.

It is not an unprimeable number, because it can be changed into a prime (3836941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7586 + ... + 8075.

It is an arithmetic number, because the mean of its divisors is an integer number (446367).

Almost surely, 2^3836945 is an apocalyptic number.

3836945 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3836945 is a deficient number, since it is larger than the sum of its proper divisors (1519459).

3836945 is a wasteful number, since it uses less digits than its factorization.

3836945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15680 (or 15673 counting only the distinct ones).

The product of its digits is 77760, while the sum is 38.

The square root of 3836945 is about 1958.8121400481. The cubic root of 3836945 is about 156.5531671269.

The spelling of 3836945 in words is "three million, eight hundred thirty-six thousand, nine hundred forty-five".