3431629 has 2 divisors, whose sum is σ = 3431630. Its totient is φ = 3431628.

The previous prime is 3431621. The next prime is 3431641. The reversal of 3431629 is 9261343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3204100 + 227529 = 1790^2 + 477^2 .

It is a cyclic number.

It is not a de Polignac number, because 3431629 - 2³ = 3431621 is a prime.

It is a super-3 number, since 3×3431629³ (a number of 21 digits) contains 333 as substring.

It is an Ulam number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 3431597 and 3431606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3431621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1715814 + 1715815.

It is an arithmetic number, because the mean of its divisors is an integer number (1715815).

Almost surely, 2^3431629 is an apocalyptic number.

It is an amenable number.

3431629 is a deficient number, since it is larger than the sum of its proper divisors (1).

3431629 is an equidigital number, since it uses as much as digits as its factorization.

3431629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 28.

The square root of 3431629 is about 1852.4656542025. The cubic root of 3431629 is about 150.8342991775.

The spelling of 3431629 in words is "three million, four hundred thirty-one thousand, six hundred twenty-nine".