3418729 has 2 divisors, whose sum is σ = 3418730. Its totient is φ = 3418728.

The previous prime is 3418699. The next prime is 3418739. The reversal of 3418729 is 9278143.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2408704 + 1010025 = 1552^2 + 1005^2 .

It is a cyclic number.

It is not a de Polignac number, because 3418729 - 2⁷ = 3418601 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 3418694 and 3418703.

It is not a weakly prime, because it can be changed into another prime (3418739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1709364 + 1709365.

It is an arithmetic number, because the mean of its divisors is an integer number (1709365).

Almost surely, 2^3418729 is an apocalyptic number.

It is an amenable number.

3418729 is a deficient number, since it is larger than the sum of its proper divisors (1).

3418729 is an equidigital number, since it uses as much as digits as its factorization.

3418729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 34.

The square root of 3418729 is about 1848.9805299137. The cubic root of 3418729 is about 150.6450590527.

The spelling of 3418729 in words is "three million, four hundred eighteen thousand, seven hundred twenty-nine".