2920785493 has 2 divisors, whose sum is σ = 2920785494. Its totient is φ = 2920785492.

The previous prime is 2920785457. The next prime is 2920785503. The reversal of 2920785493 is 3945870292.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2176968964 + 743816529 = 46658^2 + 27273^2 .

It is a cyclic number.

It is not a de Polignac number, because 2920785493 - 2²¹ = 2918688341 is a prime.

It is a super-2 number, since 2×2920785493² = 17061975792238506098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2920755493) 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 as a sum of consecutive naturals, namely, 1460392746 + 1460392747.

It is an arithmetic number, because the mean of its divisors is an integer number (1460392747).

Almost surely, 2^2920785493 is an apocalyptic number.

It is an amenable number.

2920785493 is a deficient number, since it is larger than the sum of its proper divisors (1).

2920785493 is an equidigital number, since it uses as much as digits as its factorization.

2920785493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 2920785493 is about 54044.2919557653. The cubic root of 2920785493 is about 1429.4420522066.

The spelling of 2920785493 in words is "two billion, nine hundred twenty million, seven hundred eighty-five thousand, four hundred ninety-three".