28411723 has 4 divisors (see below), whose sum is σ = 28559128. Its totient is φ = 28264320.

The previous prime is 28411699. The next prime is 28411753. The reversal of 28411723 is 32711482.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28411723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28411691 and 28411700.

It is not an unprimeable number, because it can be changed into a prime (28411753) 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 3 ways as a sum of consecutive naturals, for example, 73413 + ... + 73798.

It is an arithmetic number, because the mean of its divisors is an integer number (7139782).

Almost surely, 2^28411723 is an apocalyptic number.

28411723 is a deficient number, since it is larger than the sum of its proper divisors (147405).

28411723 is a wasteful number, since it uses less digits than its factorization.

28411723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147404.

The product of its digits is 2688, while the sum is 28.

The square root of 28411723 is about 5330.2648151851. The cubic root of 28411723 is about 305.1400342363.

The spelling of 28411723 in words is "twenty-eight million, four hundred eleven thousand, seven hundred twenty-three".