4020937 has 8 divisors (see below), whose sum is σ = 4229640. Its totient is φ = 3816960.

The previous prime is 4020923. The next prime is 4020949. The reversal of 4020937 is 7390204.

It can be written as a sum of positive squares in 4 ways, for example, as 414736 + 3606201 = 644^2 + 1899^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4020937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4020977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 633 + ... + 2905.

It is an arithmetic number, because the mean of its divisors is an integer number (528705).

Almost surely, 2^4020937 is an apocalyptic number.

It is an amenable number.

4020937 is a deficient number, since it is larger than the sum of its proper divisors (208703).

4020937 is a wasteful number, since it uses less digits than its factorization.

4020937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2363.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 4020937 is about 2005.2274185239. The cubic root of 4020937 is about 159.0165851666.

The spelling of 4020937 in words is "four million, twenty thousand, nine hundred thirty-seven".