3420720783 has 12 divisors (see below), whose sum is σ = 4941598168. Its totient is φ = 2280223440.

The previous prime is 3420720763. The next prime is 3420720799. The reversal of 3420720783 is 3870270243.

It is not a de Polignac number, because 3420720783 - 2¹² = 3420716687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420720763) 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 11 ways as a sum of consecutive naturals, for example, 97716 + ... + 128022.

Almost surely, 2^3420720783 is an apocalyptic number.

3420720783 is a deficient number, since it is larger than the sum of its proper divisors (1520877385).

3420720783 is a wasteful number, since it uses less digits than its factorization.

3420720783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42854 (or 42851 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 3420720783 is about 58486.9283088110. The cubic root of 3420720783 is about 1506.7430910592.

The spelling of 3420720783 in words is "three billion, four hundred twenty million, seven hundred twenty thousand, seven hundred eighty-three".