3707861 has 2 divisors, whose sum is σ = 3707862. Its totient is φ = 3707860.

The previous prime is 3707857. The next prime is 3707863. The reversal of 3707861 is 1687073.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2002225 + 1705636 = 1415^2 + 1306^2 .

It is a cyclic number.

It is not a de Polignac number, because 3707861 - 2² = 3707857 is a prime.

Together with 3707863, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3707863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1853930 + 1853931.

It is an arithmetic number, because the mean of its divisors is an integer number (1853931).

Almost surely, 2^3707861 is an apocalyptic number.

It is an amenable number.

3707861 is a deficient number, since it is larger than the sum of its proper divisors (1).

3707861 is an equidigital number, since it uses as much as digits as its factorization.

3707861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 3707861 is about 1925.5806916356. The cubic root of 3707861 is about 154.7774955211. Note that the first 3 decimals are identical.

The spelling of 3707861 in words is "three million, seven hundred seven thousand, eight hundred sixty-one".