4961649 has 32 divisors (see below), whose sum is σ = 8441856. Its totient is φ = 2517120.

The previous prime is 4961633. The next prime is 4961659. The reversal of 4961649 is 9461694.

It is not a de Polignac number, because 4961649 - 2⁴ = 4961633 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4961609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10629 + ... + 11085.

It is an arithmetic number, because the mean of its divisors is an integer number (263808).

Almost surely, 2^4961649 is an apocalyptic number.

It is an amenable number.

4961649 is a deficient number, since it is larger than the sum of its proper divisors (3480207).

4961649 is a wasteful number, since it uses less digits than its factorization.

4961649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525.

The product of its digits is 46656, while the sum is 39.

The square root of 4961649 is about 2227.4759257958. The cubic root of 4961649 is about 170.5592768381.

It can be divided in two parts, 496 and 1649, that added together give a triangular number (2145 = T₆₅).

The spelling of 4961649 in words is "four million, nine hundred sixty-one thousand, six hundred forty-nine".