3661907 has 2 divisors, whose sum is σ = 3661908. Its totient is φ = 3661906.

The previous prime is 3661871. The next prime is 3661909. The reversal of 3661907 is 7091663.

It is a strong prime.

It is an emirp because it is prime and its reverse (7091663) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3661907 - 2¹⁶ = 3596371 is a prime.

Together with 3661909, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3661909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1830953 + 1830954.

It is an arithmetic number, because the mean of its divisors is an integer number (1830954).

Almost surely, 2^3661907 is an apocalyptic number.

3661907 is a deficient number, since it is larger than the sum of its proper divisors (1).

3661907 is an equidigital number, since it uses as much as digits as its factorization.

3661907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 3661907 is about 1913.6109845002. The cubic root of 3661907 is about 154.1354152708.

The spelling of 3661907 in words is "three million, six hundred sixty-one thousand, nine hundred seven".