26999961 has 8 divisors (see below), whose sum is σ = 38117664. Its totient is φ = 16941120.

The previous prime is 26999939. The next prime is 26999963. The reversal of 26999961 is 16999962.

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

It is not a de Polignac number, because 26999961 - 2⁶ = 26999897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 529411 = 26999961 / (2 + 6 + 9 + 9 + 9 + 9 + 6 + 1).

It is not an unprimeable number, because it can be changed into a prime (26999963) 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, 264655 + ... + 264756.

It is an arithmetic number, because the mean of its divisors is an integer number (4764708).

Almost surely, 2^26999961 is an apocalyptic number.

It is an amenable number.

26999961 is a deficient number, since it is larger than the sum of its proper divisors (11117703).

26999961 is a wasteful number, since it uses less digits than its factorization.

26999961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529431.

The product of its digits is 472392, while the sum is 51.

The square root of 26999961 is about 5196.1486699285. The cubic root of 26999961 is about 299.9998555555. Note that the first 3 decimals are identical.

Subtracting from 26999961 its reverse (16999962), we obtain a palindrome (9999999).

The spelling of 26999961 in words is "twenty-six million, nine hundred ninety-nine thousand, nine hundred sixty-one".