3701021 has 2 divisors, whose sum is σ = 3701022. Its totient is φ = 3701020.

The previous prime is 3700993. The next prime is 3701063. The reversal of 3701021 is 1201073.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3189796 + 511225 = 1786^2 + 715^2 .

It is an emirp because it is prime and its reverse (1201073) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3701021 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3700987 and 3701005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3707021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1850510 + 1850511.

It is an arithmetic number, because the mean of its divisors is an integer number (1850511).

Almost surely, 2^3701021 is an apocalyptic number.

It is an amenable number.

3701021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3701021 is an equidigital number, since it uses as much as digits as its factorization.

3701021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 3701021 is about 1923.8037841734. The cubic root of 3701021 is about 154.6822627414.

Adding to 3701021 its reverse (1201073), we get a palindrome (4902094).

The spelling of 3701021 in words is "three million, seven hundred one thousand, twenty-one".