2985986 has 4 divisors (see below), whose sum is σ = 4478982. Its totient is φ = 1492992.

The previous prime is 2985979. The next prime is 2985991. The reversal of 2985986 is 6895892.

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

It can be written as a sum of positive squares in only one way, i.e., 2907025 + 78961 = 1705^2 + 281^2 .

It is a super-2 number, since 2×2985986² = 17832224784392, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2985986.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 746495 + ... + 746498.

2^2985986 is an apocalyptic number.

2985986 is a deficient number, since it is larger than the sum of its proper divisors (1492996).

2985986 is a wasteful number, since it uses less digits than its factorization.

2985986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492995.

The product of its digits is 311040, while the sum is 47.

The square root of 2985986 is about 1728.0005787036. Note that the first 3 decimals coincide. The cubic root of 2985986 is about 144.0000321502. Note that the first 4 decimals are identical.

The spelling of 2985986 in words is "two million, nine hundred eighty-five thousand, nine hundred eighty-six".