3746809 has 4 divisors (see below), whose sum is σ = 4087440. Its totient is φ = 3406180.

The previous prime is 3746801. The next prime is 3746837. The reversal of 3746809 is 9086473.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3746809 - 2³ = 3746801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3746801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170299 + ... + 170320.

It is an arithmetic number, because the mean of its divisors is an integer number (1021860).

Almost surely, 2^3746809 is an apocalyptic number.

It is an amenable number.

3746809 is a deficient number, since it is larger than the sum of its proper divisors (340631).

3746809 is a wasteful number, since it uses less digits than its factorization.

3746809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340630.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 3746809 is about 1935.6675850982. The cubic root of 3746809 is about 155.3175453304.

The spelling of 3746809 in words is "three million, seven hundred forty-six thousand, eight hundred nine".