4742621 has 8 divisors (see below), whose sum is σ = 5161464. Its totient is φ = 4331520.

The previous prime is 4742611. The next prime is 4742641. The reversal of 4742621 is 1262474.

It can be written as a sum of positive squares in 4 ways, for example, as 98596 + 4644025 = 314^2 + 2155^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4742621 - 2⁶ = 4742557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4742611) 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 7 ways as a sum of consecutive naturals, for example, 620 + ... + 3141.

It is an arithmetic number, because the mean of its divisors is an integer number (645183).

Almost surely, 2^4742621 is an apocalyptic number.

It is an amenable number.

4742621 is a deficient number, since it is larger than the sum of its proper divisors (418843).

4742621 is a wasteful number, since it uses less digits than its factorization.

4742621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3871.

The product of its digits is 2688, while the sum is 26.

The square root of 4742621 is about 2177.7559551061. The cubic root of 4742621 is about 168.0116795546.

The spelling of 4742621 in words is "four million, seven hundred forty-two thousand, six hundred twenty-one".