2678992 has 10 divisors (see below), whose sum is σ = 5190578. Its totient is φ = 1339488.

The previous prime is 2678983. The next prime is 2678993. The reversal of 2678992 is 2998762.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2637376 + 41616 = 1624^2 + 204^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2678993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83703 + ... + 83734.

2^2678992 is an apocalyptic number.

It is an amenable number.

2678992 is a deficient number, since it is larger than the sum of its proper divisors (2511586).

2678992 is a wasteful number, since it uses less digits than its factorization.

2678992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167445 (or 167439 counting only the distinct ones).

The product of its digits is 108864, while the sum is 43.

The square root of 2678992 is about 1636.7626584206. The cubic root of 2678992 is about 138.8855742735.

The spelling of 2678992 in words is "two million, six hundred seventy-eight thousand, nine hundred ninety-two".