2978047 has 2 divisors, whose sum is σ = 2978048. Its totient is φ = 2978046.

The previous prime is 2978033. The next prime is 2978071. The reversal of 2978047 is 7408792.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2978047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2977997 and 2978015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2978147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1489023 + 1489024.

It is an arithmetic number, because the mean of its divisors is an integer number (1489024).

2^2978047 is an apocalyptic number.

2978047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2978047 is an equidigital number, since it uses as much as digits as its factorization.

2978047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 2978047 is about 1725.7018861901. The cubic root of 2978047 is about 143.8722986945.

The spelling of 2978047 in words is "two million, nine hundred seventy-eight thousand, forty-seven".