2980645 has 8 divisors (see below), whose sum is σ = 3600504. Its totient is φ = 2368704.

The previous prime is 2980583. The next prime is 2980669. The reversal of 2980645 is 5460892.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 42849 + 2937796 = 207^2 + 1714^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2980645 - 2¹⁵ = 2947877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2980645.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1114 + ... + 2683.

It is an arithmetic number, because the mean of its divisors is an integer number (450063).

2^2980645 is an apocalyptic number.

It is an amenable number.

2980645 is a deficient number, since it is larger than the sum of its proper divisors (619859).

2980645 is a wasteful number, since it uses less digits than its factorization.

2980645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3959.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 2980645 is about 1726.4544592893. The cubic root of 2980645 is about 143.9141238226.

The spelling of 2980645 in words is "two million, nine hundred eighty thousand, six hundred forty-five".