2849978 has 4 divisors (see below), whose sum is σ = 4274970. Its totient is φ = 1424988.

The previous prime is 2849963. The next prime is 2849983. The reversal of 2849978 is 8799482.

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., 2745649 + 104329 = 1657^2 + 323^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712493 + ... + 712496.

2^2849978 is an apocalyptic number.

2849978 is a deficient number, since it is larger than the sum of its proper divisors (1424992).

2849978 is a wasteful number, since it uses less digits than its factorization.

2849978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424991.

The product of its digits is 290304, while the sum is 47.

The square root of 2849978 is about 1688.1877857632. The cubic root of 2849978 is about 141.7796290868.

The spelling of 2849978 in words is "two million, eight hundred forty-nine thousand, nine hundred seventy-eight".