3497780005 has 12 divisors (see below), whose sum is σ = 4458763620. Its totient is φ = 2633621504.

The previous prime is 3497779979. The next prime is 3497780021. The reversal of 3497780005 is 5000877943.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 59013124 + 3438766881 = 7682^2 + 58641^2 .

It is not a de Polignac number, because 3497780005 - 2⁷ = 3497779877 is a prime.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1208860 + ... + 1211749.

It is an arithmetic number, because the mean of its divisors is an integer number (371563635).

Almost surely, 2^3497780005 is an apocalyptic number.

It is an amenable number.

3497780005 is a deficient number, since it is larger than the sum of its proper divisors (960983615).

3497780005 is a wasteful number, since it uses less digits than its factorization.

3497780005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2420648 (or 2420631 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 3497780005 is about 59142.0324726839. The cubic root of 3497780005 is about 1517.9734079322.

The spelling of 3497780005 in words is "three billion, four hundred ninety-seven million, seven hundred eighty thousand, five".