4621729 has 6 divisors (see below), whose sum is σ = 5376354. Its totient is φ = 3961440.

The previous prime is 4621723. The next prime is 4621777. The reversal of 4621729 is 9271264.

It can be written as a sum of positive squares in only one way, i.e., 4558225 + 63504 = 2135^2 + 252^2 .

It is not a de Polignac number, because 4621729 - 2⁹ = 4621217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4621729.

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 5 ways as a sum of consecutive naturals, for example, 47112 + ... + 47209.

It is an arithmetic number, because the mean of its divisors is an integer number (896059).

Almost surely, 2^4621729 is an apocalyptic number.

4621729 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

4621729 is a deficient number, since it is larger than the sum of its proper divisors (754625).

4621729 is an equidigital number, since it uses as much as digits as its factorization.

4621729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94335 (or 94328 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 4621729 is about 2149.8206901972. The cubic root of 4621729 is about 166.5718051291.

The spelling of 4621729 in words is "four million, six hundred twenty-one thousand, seven hundred twenty-nine".