26420723 has 4 divisors (see below), whose sum is σ = 30195120. Its totient is φ = 22646328.

The previous prime is 26420677. The next prime is 26420729. The reversal of 26420723 is 32702462.

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 26420723 - 2¹⁰ = 26419699 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26420692 and 26420701.

It is not an unprimeable number, because it can be changed into a prime (26420729) 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, 1887188 + ... + 1887201.

It is an arithmetic number, because the mean of its divisors is an integer number (7548780).

Almost surely, 2^26420723 is an apocalyptic number.

26420723 is a deficient number, since it is larger than the sum of its proper divisors (3774397).

26420723 is an equidigital number, since it uses as much as digits as its factorization.

26420723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3774396.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 26420723 is about 5140.1092400843. The cubic root of 26420723 is about 297.8390006117.

The spelling of 26420723 in words is "twenty-six million, four hundred twenty thousand, seven hundred twenty-three".