3428729655 has 32 divisors (see below), whose sum is σ = 5919480000. Its totient is φ = 1684700160.

The previous prime is 3428729651. The next prime is 3428729699. The reversal of 3428729655 is 5569278243.

It is a happy number.

It is not a de Polignac number, because 3428729655 - 2² = 3428729651 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3428729598 and 3428729607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3428729651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84721 + ... + 118469.

It is an arithmetic number, because the mean of its divisors is an integer number (184983750).

Almost surely, 2^3428729655 is an apocalyptic number.

3428729655 is a deficient number, since it is larger than the sum of its proper divisors (2490750345).

3428729655 is a wasteful number, since it uses less digits than its factorization.

3428729655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34291.

The product of its digits is 3628800, while the sum is 51.

The square root of 3428729655 is about 58555.3554766769. The cubic root of 3428729655 is about 1507.9180780369.

The spelling of 3428729655 in words is "three billion, four hundred twenty-eight million, seven hundred twenty-nine thousand, six hundred fifty-five".