4974921 has 36 divisors (see below), whose sum is σ = 8669700. Its totient is φ = 2737728.

The previous prime is 4974919. The next prime is 4974929. The reversal of 4974921 is 1294794.

It can be written as a sum of positive squares in 2 ways, for example, as 1863225 + 3111696 = 1365^2 + 1764^2 .

It is not a de Polignac number, because 4974921 - 2¹ = 4974919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4974929) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12595 + ... + 12983.

It is an arithmetic number, because the mean of its divisors is an integer number (240825).

Almost surely, 2^4974921 is an apocalyptic number.

It is an amenable number.

4974921 is a deficient number, since it is larger than the sum of its proper divisors (3694779).

4974921 is a wasteful number, since it uses less digits than its factorization.

4974921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 428 counting only the distinct ones).

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

The square root of 4974921 is about 2230.4530929836. The cubic root of 4974921 is about 170.7112187528.

It can be divided in two parts, 49749 and 21, that added together give a triangular number (49770 = T₃₁₅).

The spelling of 4974921 in words is "four million, nine hundred seventy-four thousand, nine hundred twenty-one".