3701641 has 2 divisors, whose sum is σ = 3701642. Its totient is φ = 3701640.

The previous prime is 3701639. The next prime is 3701653. The reversal of 3701641 is 1461073.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3027600 + 674041 = 1740^2 + 821^2 .

It is an emirp because it is prime and its reverse (1461073) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3701641 - 2¹ = 3701639 is a prime.

Together with 3701639, it forms a pair of twin primes.

3701641 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3701141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1850820 + 1850821.

It is an arithmetic number, because the mean of its divisors is an integer number (1850821).

Almost surely, 2^3701641 is an apocalyptic number.

It is an amenable number.

3701641 is a deficient number, since it is larger than the sum of its proper divisors (1).

3701641 is an equidigital number, since it uses as much as digits as its factorization.

3701641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 3701641 is about 1923.9649165200. The cubic root of 3701641 is about 154.6908997858.

The spelling of 3701641 in words is "three million, seven hundred one thousand, six hundred forty-one".