26223861 has 16 divisors (see below), whose sum is σ = 37073408. Its totient is φ = 16459200.

The previous prime is 26223833. The next prime is 26223871. The reversal of 26223861 is 16832262.

It is not a de Polignac number, because 26223861 - 2⁹ = 26223349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26223811) 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 15 ways as a sum of consecutive naturals, for example, 370 + ... + 7251.

It is an arithmetic number, because the mean of its divisors is an integer number (2317088).

Almost surely, 2^26223861 is an apocalyptic number.

It is an amenable number.

26223861 is a deficient number, since it is larger than the sum of its proper divisors (10849547).

26223861 is a wasteful number, since it uses less digits than its factorization.

26223861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7692.

The product of its digits is 6912, while the sum is 30.

The square root of 26223861 is about 5120.9238424331. The cubic root of 26223861 is about 297.0974184160.

The spelling of 26223861 in words is "twenty-six million, two hundred twenty-three thousand, eight hundred sixty-one".