26791066 has 4 divisors (see below), whose sum is σ = 40186602. Its totient is φ = 13395532.

The previous prime is 26791049. The next prime is 26791091. The reversal of 26791066 is 66019762.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66019762 = 2 ⋅33009881.

It can be written as a sum of positive squares in only one way, i.e., 22043025 + 4748041 = 4695^2 + 2179^2 .

It is a super-2 number, since 2×26791066² = 1435522434832712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6697765 + ... + 6697768.

Almost surely, 2^26791066 is an apocalyptic number.

26791066 is a deficient number, since it is larger than the sum of its proper divisors (13395536).

26791066 is a wasteful number, since it uses less digits than its factorization.

26791066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13395535.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 26791066 is about 5176.0086939649. The cubic root of 26791066 is about 299.2241657038.

The spelling of 26791066 in words is "twenty-six million, seven hundred ninety-one thousand, sixty-six".