2977985 has 8 divisors (see below), whose sum is σ = 3609576. Its totient is φ = 2358400.

The previous prime is 2977979. The next prime is 2977991. The reversal of 2977985 is 5897792.

2977985 = 6² + 7² + ... + 207².

It is an interprime number because it is at equal distance from previous prime (2977979) and next prime (2977991).

It can be written as a sum of positive squares in 4 ways, for example, as 1721344 + 1256641 = 1312^2 + 1121^2 .

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

It is not a de Polignac number, because 2977985 - 2⁶ = 2977921 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2444 + ... + 3453.

It is an arithmetic number, because the mean of its divisors is an integer number (451197).

2^2977985 is an apocalyptic number.

It is an amenable number.

2977985 is a deficient number, since it is larger than the sum of its proper divisors (631591).

2977985 is a wasteful number, since it uses less digits than its factorization.

2977985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6003.

The product of its digits is 317520, while the sum is 47.

The square root of 2977985 is about 1725.6839223914. The cubic root of 2977985 is about 143.8713002612.

The spelling of 2977985 in words is "two million, nine hundred seventy-seven thousand, nine hundred eighty-five".