3020505 has 16 divisors (see below), whose sum is σ = 4916160. Its totient is φ = 1583168.

The previous prime is 3020497. The next prime is 3020513. The reversal of 3020505 is 5050203.

It is an interprime number because it is at equal distance from previous prime (3020497) and next prime (3020513).

It is a cyclic number.

It is not a de Polignac number, because 3020505 - 2³ = 3020497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 822 + ... + 2591.

It is an arithmetic number, because the mean of its divisors is an integer number (307260).

Almost surely, 2^3020505 is an apocalyptic number.

It is an amenable number.

3020505 is a deficient number, since it is larger than the sum of its proper divisors (1895655).

3020505 is a wasteful number, since it uses less digits than its factorization.

3020505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3480.

The product of its (nonzero) digits is 150, while the sum is 15.

The square root of 3020505 is about 1737.9600110474. The cubic root of 3020505 is about 144.5528037444.

Adding to 3020505 its reverse (5050203), we get a palindrome (8070708).

The spelling of 3020505 in words is "three million, twenty thousand, five hundred five".