3761861 has 2 divisors, whose sum is σ = 3761862. Its totient is φ = 3761860.

The previous prime is 3761843. The next prime is 3761893. The reversal of 3761861 is 1681673.

It is an a-pointer prime, because the next prime (3761893) can be obtained adding 3761861 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2540836 + 1221025 = 1594^2 + 1105^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3761861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3761801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1880930 + 1880931.

It is an arithmetic number, because the mean of its divisors is an integer number (1880931).

Almost surely, 2^3761861 is an apocalyptic number.

It is an amenable number.

3761861 is a deficient number, since it is larger than the sum of its proper divisors (1).

3761861 is an equidigital number, since it uses as much as digits as its factorization.

3761861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 32.

The square root of 3761861 is about 1939.5517523387. The cubic root of 3761861 is about 155.5252523927.

The spelling of 3761861 in words is "three million, seven hundred sixty-one thousand, eight hundred sixty-one".