4949721 has 16 divisors (see below), whose sum is σ = 8380800. Its totient is φ = 2828304.

The previous prime is 4949719. The next prime is 4949741. The reversal of 4949721 is 1279494.

It is not a de Polignac number, because 4949721 - 2¹ = 4949719 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4949741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12906 + ... + 13283.

It is an arithmetic number, because the mean of its divisors is an integer number (523800).

Almost surely, 2^4949721 is an apocalyptic number.

It is an amenable number.

4949721 is a deficient number, since it is larger than the sum of its proper divisors (3431079).

4949721 is a wasteful number, since it uses less digits than its factorization.

4949721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26205 (or 26199 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 4949721 is about 2224.7968446580. The cubic root of 4949721 is about 170.4224900885.

It can be divided in two parts, 49 and 49721, that added together give a triangular number (49770 = T₃₁₅).

The spelling of 4949721 in words is "four million, nine hundred forty-nine thousand, seven hundred twenty-one".