3653946 has 24 divisors (see below), whose sum is σ = 8383284. Its totient is φ = 1146240.

The previous prime is 3653911. The next prime is 3653959. The reversal of 3653946 is 6493563.

It can be written as a sum of positive squares in 2 ways, for example, as 3651921 + 2025 = 1911^2 + 45^2 .

It is a d-powerful number, because it can be written as 3⁴ + 6⁴ + 5⁹ + 3⁹ + 9² + 4³ + 6⁸ .

It is a self number, because there is not a number n which added to its sum of digits gives 3653946.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5665 + ... + 6276.

Almost surely, 2^3653946 is an apocalyptic number.

3653946 is an abundant number, since it is smaller than the sum of its proper divisors (4729338).

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

3653946 is a wasteful number, since it uses less digits than its factorization.

3653946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11966 (or 11963 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 3653946 is about 1911.5297538882. The cubic root of 3653946 is about 154.0236372331.

It can be divided in two parts, 36539 and 46, that added together give a triangular number (36585 = T₂₇₀).

The spelling of 3653946 in words is "three million, six hundred fifty-three thousand, nine hundred forty-six".