26343561 has 8 divisors (see below), whose sum is σ = 35292064. Its totient is φ = 17478720.

The previous prime is 26343553. The next prime is 26343587. The reversal of 26343561 is 16534362.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26343561 - 2³ = 26343553 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26343511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20176 + ... + 21441.

It is an arithmetic number, because the mean of its divisors is an integer number (4411508).

Almost surely, 2^26343561 is an apocalyptic number.

It is an amenable number.

26343561 is a deficient number, since it is larger than the sum of its proper divisors (8948503).

26343561 is a wasteful number, since it uses less digits than its factorization.

26343561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41831.

The product of its digits is 12960, while the sum is 30.

The square root of 26343561 is about 5132.5978802162. The cubic root of 26343561 is about 297.5487705746.

The spelling of 26343561 in words is "twenty-six million, three hundred forty-three thousand, five hundred sixty-one".