26720723 has 4 divisors (see below), whose sum is σ = 27059040. Its totient is φ = 26382408.

The previous prime is 26720717. The next prime is 26720741. The reversal of 26720723 is 32702762.

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 26720723 - 2⁸ = 26720467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26720713) 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, 169040 + ... + 169197.

It is an arithmetic number, because the mean of its divisors is an integer number (6764760).

Almost surely, 2^26720723 is an apocalyptic number.

26720723 is a deficient number, since it is larger than the sum of its proper divisors (338317).

26720723 is an equidigital number, since it uses as much as digits as its factorization.

26720723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338316.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 26720723 is about 5169.2091271296. The cubic root of 26720723 is about 298.9620537744.

The spelling of 26720723 in words is "twenty-six million, seven hundred twenty thousand, seven hundred twenty-three".