4974521 has 2 divisors, whose sum is σ = 4974522. Its totient is φ = 4974520.

The previous prime is 4974517. The next prime is 4974559. The reversal of 4974521 is 1254794.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4687225 + 287296 = 2165^2 + 536^2 .

It is a cyclic number.

It is not a de Polignac number, because 4974521 - 2² = 4974517 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (4974511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2487260 + 2487261.

It is an arithmetic number, because the mean of its divisors is an integer number (2487261).

Almost surely, 2^4974521 is an apocalyptic number.

It is an amenable number.

4974521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4974521 is an equidigital number, since it uses as much as digits as its factorization.

4974521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 32.

The square root of 4974521 is about 2230.3634233012. The cubic root of 4974521 is about 170.7066433824.

The spelling of 4974521 in words is "four million, nine hundred seventy-four thousand, five hundred twenty-one".