3456420985 has 8 divisors (see below), whose sum is σ = 4148031816. Its totient is φ = 2764919040.

The previous prime is 3456420973. The next prime is 3456421019. The reversal of 3456420985 is 5890246543.

It can be written as a sum of positive squares in 4 ways, for example, as 1716196329 + 1740224656 = 41427^2 + 41716^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3456420985 - 2¹³ = 3456412793 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83755 + ... + 118015.

It is an arithmetic number, because the mean of its divisors is an integer number (518503977).

Almost surely, 2^3456420985 is an apocalyptic number.

It is an amenable number.

3456420985 is a deficient number, since it is larger than the sum of its proper divisors (691610831).

3456420985 is a wasteful number, since it uses less digits than its factorization.

3456420985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54443.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The square root of 3456420985 is about 58791.3342679004. The cubic root of 3456420985 is about 1511.9666471803.

The spelling of 3456420985 in words is "three billion, four hundred fifty-six million, four hundred twenty thousand, nine hundred eighty-five".