2678002 has 4 divisors (see below), whose sum is σ = 4017006. Its totient is φ = 1339000.

The previous prime is 2677973. The next prime is 2678009. The reversal of 2678002 is 2008762.

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., 1957201 + 720801 = 1399^2 + 849^2 .

It is not an unprimeable number, because it can be changed into a prime (2678009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669499 + ... + 669502.

2^2678002 is an apocalyptic number.

2678002 is a deficient number, since it is larger than the sum of its proper divisors (1339004).

2678002 is a wasteful number, since it uses less digits than its factorization.

2678002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339003.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 2678002 is about 1636.4602042213. The cubic root of 2678002 is about 138.8684641491.

The spelling of 2678002 in words is "two million, six hundred seventy-eight thousand, two".