4978723 has 2 divisors, whose sum is σ = 4978724. Its totient is φ = 4978722.

The previous prime is 4978709. The next prime is 4978751. The reversal of 4978723 is 3278794.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4978723 is a prime.

4978723 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4978783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2489361 + 2489362.

It is an arithmetic number, because the mean of its divisors is an integer number (2489362).

Almost surely, 2^4978723 is an apocalyptic number.

4978723 is a deficient number, since it is larger than the sum of its proper divisors (1).

4978723 is an equidigital number, since it uses as much as digits as its factorization.

4978723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 40.

The square root of 4978723 is about 2231.3052234062. The cubic root of 4978723 is about 170.7546954085.

The spelling of 4978723 in words is "four million, nine hundred seventy-eight thousand, seven hundred twenty-three".