4978147 has 2 divisors, whose sum is σ = 4978148. Its totient is φ = 4978146.

The previous prime is 4978121. The next prime is 4978151. The reversal of 4978147 is 7418794.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4978147 - 2¹⁹ = 4453859 is a prime.

It is not a weakly prime, because it can be changed into another prime (4978157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2489073 + 2489074.

It is an arithmetic number, because the mean of its divisors is an integer number (2489074).

Almost surely, 2^4978147 is an apocalyptic number.

4978147 is a deficient number, since it is larger than the sum of its proper divisors (1).

4978147 is an equidigital number, since it uses as much as digits as its factorization.

4978147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 40.

The square root of 4978147 is about 2231.1761472371. The cubic root of 4978147 is about 170.7481101525.

The spelling of 4978147 in words is "four million, nine hundred seventy-eight thousand, one hundred forty-seven".