4621720 has 32 divisors (see below), whose sum is σ = 10465200. Its totient is φ = 1836928.

The previous prime is 4621711. The next prime is 4621723. The reversal of 4621720 is 271264.

It is a junction number, because it is equal to n+sod(n) for n = 4621691 and 4621700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4621723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8826 + ... + 9334.

Almost surely, 2^4621720 is an apocalyptic number.

4621720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4621720 is an abundant number, since it is smaller than the sum of its proper divisors (5843480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4621720 is a wasteful number, since it uses less digits than its factorization.

4621720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747 (or 743 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 4621720 is about 2149.8185969984. The cubic root of 4621720 is about 166.5716970060.

Adding to 4621720 its reverse (271264), we get a palindrome (4892984).

The spelling of 4621720 in words is "four million, six hundred twenty-one thousand, seven hundred twenty".