4919661 has 12 divisors (see below), whose sum is σ = 7207200. Its totient is φ = 3233160.

The previous prime is 4919657. The next prime is 4919671. The reversal of 4919661 is 1669194.

It is not a de Polignac number, because 4919661 - 2² = 4919657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4919671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3211 + ... + 4488.

It is an arithmetic number, because the mean of its divisors is an integer number (600600).

Almost surely, 2^4919661 is an apocalyptic number.

It is an amenable number.

4919661 is a deficient number, since it is larger than the sum of its proper divisors (2287539).

4919661 is a wasteful number, since it uses less digits than its factorization.

4919661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7776 (or 7773 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 4919661 is about 2218.0308834640. The cubic root of 4919661 is about 170.0767934482.

The spelling of 4919661 in words is "four million, nine hundred nineteen thousand, six hundred sixty-one".