3731731 has 2 divisors, whose sum is σ = 3731732. Its totient is φ = 3731730.

The previous prime is 3731713. The next prime is 3731737. The reversal of 3731731 is 1371373.

3731731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (3731713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3731731 - 2⁷ = 3731603 is a prime.

It is a super-2 number, since 2×3731731² = 27851632512722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3731696 and 3731705.

It is not a weakly prime, because it can be changed into another prime (3731737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1865865 + 1865866.

It is an arithmetic number, because the mean of its divisors is an integer number (1865866).

Almost surely, 2^3731731 is an apocalyptic number.

3731731 is a deficient number, since it is larger than the sum of its proper divisors (1).

3731731 is an equidigital number, since it uses as much as digits as its factorization.

3731731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1323, while the sum is 25.

The square root of 3731731 is about 1931.7688785152. The cubic root of 3731731 is about 155.1089210135.

The spelling of 3731731 in words is "three million, seven hundred thirty-one thousand, seven hundred thirty-one".