2997986 has 4 divisors (see below), whose sum is σ = 4496982. Its totient is φ = 1498992.

The previous prime is 2997977. The next prime is 2997997. The reversal of 2997986 is 6897992.

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., 2825761 + 172225 = 1681^2 + 415^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 749495 + ... + 749498.

2^2997986 is an apocalyptic number.

2997986 is a deficient number, since it is larger than the sum of its proper divisors (1498996).

2997986 is a wasteful number, since it uses less digits than its factorization.

2997986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498995.

The product of its digits is 489888, while the sum is 50.

The square root of 2997986 is about 1731.4693182381. The cubic root of 2997986 is about 144.1926754654.

The spelling of 2997986 in words is "two million, nine hundred ninety-seven thousand, nine hundred eighty-six".