3438731 has 2 divisors, whose sum is σ = 3438732. Its totient is φ = 3438730.

The previous prime is 3438713. The next prime is 3438749. The reversal of 3438731 is 1378343.

3438731 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 (3438713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (3438713) and next prime (3438749).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3438731 is a prime.

It is a super-2 number, since 2×3438731² = 23649741780722, which contains 22 as substring.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 3438694 and 3438703.

It is not a weakly prime, because it can be changed into another prime (3438751) 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, 1719365 + 1719366.

It is an arithmetic number, because the mean of its divisors is an integer number (1719366).

Almost surely, 2^3438731 is an apocalyptic number.

3438731 is a deficient number, since it is larger than the sum of its proper divisors (1).

3438731 is an equidigital number, since it uses as much as digits as its factorization.

3438731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 29.

The square root of 3438731 is about 1854.3815680706. The cubic root of 3438731 is about 150.9382815766.

The spelling of 3438731 in words is "three million, four hundred thirty-eight thousand, seven hundred thirty-one".