4978973 has 2 divisors, whose sum is σ = 4978974. Its totient is φ = 4978972.

The previous prime is 4978957. The next prime is 4978993. The reversal of 4978973 is 3798794.

4978973 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3485689 + 1493284 = 1867^2 + 1222^2 .

It is a cyclic number.

It is not a de Polignac number, because 4978973 - 2⁴ = 4978957 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 4⁷ + 9 + 7⁴ + 8³ + 9⁵ + 7⁶ + 3¹⁴ .

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4978903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2489486 + 2489487.

It is an arithmetic number, because the mean of its divisors is an integer number (2489487).

Almost surely, 2^4978973 is an apocalyptic number.

It is an amenable number.

4978973 is a deficient number, since it is larger than the sum of its proper divisors (1).

4978973 is an equidigital number, since it uses as much as digits as its factorization.

4978973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 47.

The square root of 4978973 is about 2231.3612437255. The cubic root of 4978973 is about 170.7575534345.

The spelling of 4978973 in words is "four million, nine hundred seventy-eight thousand, nine hundred seventy-three".