26995971 has 4 divisors (see below), whose sum is σ = 35994632. Its totient is φ = 17997312.

The previous prime is 26995963. The next prime is 26996003. The reversal of 26995971 is 17959962.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 26995971 - 2³ = 26995963 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26995971.

It is not an unprimeable number, because it can be changed into a prime (26995471) 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, 4499326 + ... + 4499331.

It is an arithmetic number, because the mean of its divisors is an integer number (8998658).

Almost surely, 2^26995971 is an apocalyptic number.

26995971 is a deficient number, since it is larger than the sum of its proper divisors (8998661).

26995971 is an equidigital number, since it uses as much as digits as its factorization.

26995971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8998660.

The product of its digits is 306180, while the sum is 48.

The square root of 26995971 is about 5195.7647175368. The cubic root of 26995971 is about 299.9850770355.

It can be divided in two parts, 26995 and 971, that added together give a triangular number (27966 = T₂₃₆).

The spelling of 26995971 in words is "twenty-six million, nine hundred ninety-five thousand, nine hundred seventy-one".