3547429 has 2 divisors, whose sum is σ = 3547430. Its totient is φ = 3547428.

The previous prime is 3547421. The next prime is 3547459. The reversal of 3547429 is 9247453.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2883204 + 664225 = 1698^2 + 815^2 .

It is a cyclic number.

It is not a de Polignac number, because 3547429 - 2³ = 3547421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3547394 and 3547403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3547421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1773714 + 1773715.

It is an arithmetic number, because the mean of its divisors is an integer number (1773715).

Almost surely, 2^3547429 is an apocalyptic number.

It is an amenable number.

3547429 is a deficient number, since it is larger than the sum of its proper divisors (1).

3547429 is an equidigital number, since it uses as much as digits as its factorization.

3547429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 34.

The square root of 3547429 is about 1883.4619720079. The cubic root of 3547429 is about 152.5121946712.

The spelling of 3547429 in words is "three million, five hundred forty-seven thousand, four hundred twenty-nine".