6121723 has 4 divisors (see below), whose sum is σ = 6213160. Its totient is φ = 6030288.

The previous prime is 6121721. The next prime is 6121727. The reversal of 6121723 is 3271216.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6121723 - 2¹ = 6121721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6121694 and 6121703.

It is not an unprimeable number, because it can be changed into a prime (6121721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45618 + ... + 45751.

It is an arithmetic number, because the mean of its divisors is an integer number (1553290).

Almost surely, 2^6121723 is an apocalyptic number.

6121723 is a deficient number, since it is larger than the sum of its proper divisors (91437).

6121723 is an equidigital number, since it uses as much as digits as its factorization.

6121723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91436.

The product of its digits is 504, while the sum is 22.

The square root of 6121723 is about 2474.2115915984. The cubic root of 6121723 is about 182.9326496263.

Adding to 6121723 its reverse (3271216), we get a palindrome (9392939).

The spelling of 6121723 in words is "six million, one hundred twenty-one thousand, seven hundred twenty-three".