2985977 has 4 divisors (see below), whose sum is σ = 2990436. Its totient is φ = 2981520.

The previous prime is 2985973. The next prime is 2985979. The reversal of 2985977 is 7795892.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 364816 + 2621161 = 604^2 + 1619^2 .

It is a cyclic number.

It is not a de Polignac number, because 2985977 - 2² = 2985973 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (2985971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 998 + ... + 2639.

It is an arithmetic number, because the mean of its divisors is an integer number (747609).

2^2985977 is an apocalyptic number.

It is an amenable number.

2985977 is a deficient number, since it is larger than the sum of its proper divisors (4459).

2985977 is an equidigital number, since it uses as much as digits as its factorization.

2985977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4458.

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

The square root of 2985977 is about 1727.9979745358. The cubic root of 2985977 is about 143.9998874742. Note that the first 3 decimals are identical.

The spelling of 2985977 in words is "two million, nine hundred eighty-five thousand, nine hundred seventy-seven".