26870723 has 4 divisors (see below), whose sum is σ = 29313528. Its totient is φ = 24427920.

The previous prime is 26870719. The next prime is 26870729. The reversal of 26870723 is 32707862.

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

It is not a de Polignac number, because 26870723 - 2² = 26870719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26870729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1221386 + ... + 1221407.

It is an arithmetic number, because the mean of its divisors is an integer number (7328382).

Almost surely, 2^26870723 is an apocalyptic number.

26870723 is a deficient number, since it is larger than the sum of its proper divisors (2442805).

26870723 is a wasteful number, since it uses less digits than its factorization.

26870723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442804.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 26870723 is about 5183.6978114084. The cubic root of 26870723 is about 299.5204300804.

The spelling of 26870723 in words is "twenty-six million, eight hundred seventy thousand, seven hundred twenty-three".