3736861 has 2 divisors, whose sum is σ = 3736862. Its totient is φ = 3736860.

The previous prime is 3736849. The next prime is 3736867. The reversal of 3736861 is 1686373.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3728761 + 8100 = 1931^2 + 90^2 .

It is a cyclic number.

It is not a de Polignac number, because 3736861 - 2⁹ = 3736349 is a prime.

It is an Ulam number.

3736861 is a lucky number.

It is equal to p₂₆₅₈₆₇ and since 3736861 and 265867 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3736867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1868430 + 1868431.

It is an arithmetic number, because the mean of its divisors is an integer number (1868431).

Almost surely, 2^3736861 is an apocalyptic number.

It is an amenable number.

3736861 is a deficient number, since it is larger than the sum of its proper divisors (1).

3736861 is an equidigital number, since it uses as much as digits as its factorization.

3736861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The square root of 3736861 is about 1933.0962210920. The cubic root of 3736861 is about 155.1799644000.

The spelling of 3736861 in words is "three million, seven hundred thirty-six thousand, eight hundred sixty-one".