2980657 has 4 divisors (see below), whose sum is σ = 2985840. Its totient is φ = 2975476.

The previous prime is 2980583. The next prime is 2980669. The reversal of 2980657 is 7560892.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2980657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2980687) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1603 + ... + 2920.

It is an arithmetic number, because the mean of its divisors is an integer number (746460).

2^2980657 is an apocalyptic number.

It is an amenable number.

2980657 is a deficient number, since it is larger than the sum of its proper divisors (5183).

2980657 is an equidigital number, since it uses as much as digits as its factorization.

2980657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5182.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 2980657 is about 1726.4579346164. The cubic root of 2980657 is about 143.9143169538.

The spelling of 2980657 in words is "two million, nine hundred eighty thousand, six hundred fifty-seven".