26730671 has 4 divisors (see below), whose sum is σ = 29160744. Its totient is φ = 24300600.

The previous prime is 26730667. The next prime is 26730689. The reversal of 26730671 is 17603762.

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

It is a cyclic number.

It is not a de Polignac number, because 26730671 - 2² = 26730667 is a prime.

It is a super-2 number, since 2×26730671² = 1429057544220482, 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 (26730601) 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, 1215020 + ... + 1215041.

It is an arithmetic number, because the mean of its divisors is an integer number (7290186).

Almost surely, 2^26730671 is an apocalyptic number.

26730671 is a deficient number, since it is larger than the sum of its proper divisors (2430073).

26730671 is a wasteful number, since it uses less digits than its factorization.

26730671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2430072.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 26730671 is about 5170.1712737587. The cubic root of 26730671 is about 298.9991498952. Note that the first 3 decimals are identical.

The spelling of 26730671 in words is "twenty-six million, seven hundred thirty thousand, six hundred seventy-one".