3974737 has 4 divisors (see below), whose sum is σ = 4280500. Its totient is φ = 3668976.

The previous prime is 3974723. The next prime is 3974741. The reversal of 3974737 is 7374793.

It is a happy number.

3974737 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 can be written as a sum of positive squares in 2 ways, for example, as 2359296 + 1615441 = 1536^2 + 1271^2 .

It is a cyclic number.

It is not a de Polignac number, because 3974737 - 2⁷ = 3974609 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 3974737.

It is not an unprimeable number, because it can be changed into a prime (3974717) 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, 152862 + ... + 152887.

It is an arithmetic number, because the mean of its divisors is an integer number (1070125).

Almost surely, 2^3974737 is an apocalyptic number.

It is an amenable number.

3974737 is a deficient number, since it is larger than the sum of its proper divisors (305763).

3974737 is a wasteful number, since it uses less digits than its factorization.

3974737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305762.

The product of its digits is 111132, while the sum is 40.

The square root of 3974737 is about 1993.6742462097. The cubic root of 3974737 is about 158.4052115629.

The spelling of 3974737 in words is "three million, nine hundred seventy-four thousand, seven hundred thirty-seven".