3435878309 has 2 divisors, whose sum is σ = 3435878310. Its totient is φ = 3435878308.

The previous prime is 3435878291. The next prime is 3435878359. The reversal of 3435878309 is 9038785343.

It is a happy number.

It is an a-pointer prime, because the next prime (3435878359) can be obtained adding 3435878309 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1858041025 + 1577837284 = 43105^2 + 39722^2 .

It is a cyclic number.

It is not a de Polignac number, because 3435878309 - 2¹² = 3435874213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3435878359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1717939154 + 1717939155.

It is an arithmetic number, because the mean of its divisors is an integer number (1717939155).

Almost surely, 2^3435878309 is an apocalyptic number.

It is an amenable number.

3435878309 is a deficient number, since it is larger than the sum of its proper divisors (1).

3435878309 is an equidigital number, since it uses as much as digits as its factorization.

3435878309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 50.

The square root of 3435878309 is about 58616.3655389858. The cubic root of 3435878309 is about 1508.9653173741.

The spelling of 3435878309 in words is "three billion, four hundred thirty-five million, eight hundred seventy-eight thousand, three hundred nine".