26947117 has 4 divisors (see below), whose sum is σ = 27065020. Its totient is φ = 26829216.

The previous prime is 26947069. The next prime is 26947139. The reversal of 26947117 is 71174962.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71174962 = 2 ⋅35587481.

It can be written as a sum of positive squares in 2 ways, for example, as 10536516 + 16410601 = 3246^2 + 4051^2 .

It is a cyclic number.

It is not a de Polignac number, because 26947117 - 2¹⁹ = 26422829 is a prime.

It is a super-2 number, since 2×26947117² = 1452294229223378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26947517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58608 + ... + 59065.

It is an arithmetic number, because the mean of its divisors is an integer number (6766255).

Almost surely, 2^26947117 is an apocalyptic number.

It is an amenable number.

26947117 is a deficient number, since it is larger than the sum of its proper divisors (117903).

26947117 is a wasteful number, since it uses less digits than its factorization.

26947117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117902.

The product of its digits is 21168, while the sum is 37.

The square root of 26947117 is about 5191.0612595114. The cubic root of 26947117 is about 299.8040090234.

The spelling of 26947117 in words is "twenty-six million, nine hundred forty-seven thousand, one hundred seventeen".