3501731 has 2 divisors, whose sum is σ = 3501732. Its totient is φ = 3501730.

The previous prime is 3501713. The next prime is 3501733. The reversal of 3501731 is 1371053.

It is a happy number.

Together with previous prime (3501713) 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 a de Polignac number, because none of the positive numbers 2^k-3501731 is a prime.

It is a super-2 number, since 2×3501731² = 24524239992722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 3501733, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (3501733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1750865 + 1750866.

It is an arithmetic number, because the mean of its divisors is an integer number (1750866).

Almost surely, 2^3501731 is an apocalyptic number.

3501731 is a deficient number, since it is larger than the sum of its proper divisors (1).

3501731 is an equidigital number, since it uses as much as digits as its factorization.

3501731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 315, while the sum is 20.

The square root of 3501731 is about 1871.2912654101. The cubic root of 3501731 is about 151.8544746376.

Adding to 3501731 its reverse (1371053), we get a palindrome (4872784).

The spelling of 3501731 in words is "three million, five hundred one thousand, seven hundred thirty-one".