2978799 has 12 divisors (see below), whose sum is σ = 4154136. Its totient is φ = 1898512.

The previous prime is 2978797. The next prime is 2978819. The reversal of 2978799 is 9978792.

It is a happy number.

It is not a de Polignac number, because 2978799 - 2¹ = 2978797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2978797) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 649 + ... + 2525.

It is an arithmetic number, because the mean of its divisors is an integer number (346178).

2^2978799 is an apocalyptic number.

2978799 is a deficient number, since it is larger than the sum of its proper divisors (1175337).

2978799 is a wasteful number, since it uses less digits than its factorization.

2978799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926 (or 1903 counting only the distinct ones).

The product of its digits is 571536, while the sum is 51.

The square root of 2978799 is about 1725.9197547974. The cubic root of 2978799 is about 143.8844076218.

The spelling of 2978799 in words is "two million, nine hundred seventy-eight thousand, seven hundred ninety-nine".