3747091 has 4 divisors (see below), whose sum is σ = 3910032. Its totient is φ = 3584152.

The previous prime is 3747083. The next prime is 3747097. The reversal of 3747091 is 1907473.

3747091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3747091 - 2³ = 3747083 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3747097) 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 3 ways as a sum of consecutive naturals, for example, 81436 + ... + 81481.

It is an arithmetic number, because the mean of its divisors is an integer number (977508).

Almost surely, 2^3747091 is an apocalyptic number.

3747091 is a deficient number, since it is larger than the sum of its proper divisors (162941).

3747091 is a wasteful number, since it uses less digits than its factorization.

3747091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162940.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 3747091 is about 1935.7404268135. The cubic root of 3747091 is about 155.3214418415.

The spelling of 3747091 in words is "three million, seven hundred forty-seven thousand, ninety-one".