4390937 has 2 divisors, whose sum is σ = 4390938. Its totient is φ = 4390936.

The previous prime is 4390921. The next prime is 4391003. The reversal of 4390937 is 7390934.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2483776 + 1907161 = 1576^2 + 1381^2 .

It is a cyclic number.

It is not a de Polignac number, because 4390937 - 2⁴ = 4390921 is a prime.

It is a d-powerful number, because it can be written as 4¹¹ + 3⁵ + 9 + 0 + 9⁵ + 3⁹ + 7⁶ .

It is a junction number, because it is equal to n+sod(n) for n = 4390897 and 4390906.

It is not a weakly prime, because it can be changed into another prime (4390237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2195468 + 2195469.

It is an arithmetic number, because the mean of its divisors is an integer number (2195469).

Almost surely, 2^4390937 is an apocalyptic number.

It is an amenable number.

4390937 is a deficient number, since it is larger than the sum of its proper divisors (1).

4390937 is an equidigital number, since it uses as much as digits as its factorization.

4390937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 4390937 is about 2095.4562748958. The cubic root of 4390937 is about 163.7516690776.

The spelling of 4390937 in words is "four million, three hundred ninety thousand, nine hundred thirty-seven".