4949521 has 2 divisors, whose sum is σ = 4949522. Its totient is φ = 4949520.

The previous prime is 4949501. The next prime is 4949551. The reversal of 4949521 is 1259494.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3763600 + 1185921 = 1940^2 + 1089^2 .

It is a cyclic number.

It is not a de Polignac number, because 4949521 - 2⁵ = 4949489 is a prime.

4949521 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4949501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2474760 + 2474761.

It is an arithmetic number, because the mean of its divisors is an integer number (2474761).

Almost surely, 2^4949521 is an apocalyptic number.

It is an amenable number.

4949521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4949521 is an equidigital number, since it uses as much as digits as its factorization.

4949521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The square root of 4949521 is about 2224.7518962797. The cubic root of 4949521 is about 170.4201946758.

The spelling of 4949521 in words is "four million, nine hundred forty-nine thousand, five hundred twenty-one".