6920530 has 16 divisors (see below), whose sum is σ = 13190040. Its totient is φ = 2605312.

The previous prime is 6920521. The next prime is 6920569. The reversal of 6920530 is 350296.

It can be written as a sum of positive squares in 4 ways, for example, as 5803281 + 1117249 = 2409^2 + 1057^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6920495 and 6920504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20185 + ... + 20524.

Almost surely, 2^6920530 is an apocalyptic number.

6920530 is a deficient number, since it is larger than the sum of its proper divisors (6269510).

6920530 is a wasteful number, since it uses less digits than its factorization.

6920530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40733.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 6920530 is about 2630.6900235490. The cubic root of 6920530 is about 190.5664535784.

The spelling of 6920530 in words is "six million, nine hundred twenty thousand, five hundred thirty".