26671601 has 4 divisors (see below), whose sum is σ = 29096304. Its totient is φ = 24246900.

The previous prime is 26671597. The next prime is 26671637. The reversal of 26671601 is 10617662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26671601 - 2² = 26671597 is a prime.

It is a super-2 number, since 2×26671601² = 1422748599806402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26671661) 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, 1212335 + ... + 1212356.

It is an arithmetic number, because the mean of its divisors is an integer number (7274076).

Almost surely, 2^26671601 is an apocalyptic number.

It is an amenable number.

26671601 is a deficient number, since it is larger than the sum of its proper divisors (2424703).

26671601 is a wasteful number, since it uses less digits than its factorization.

26671601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2424702.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 26671601 is about 5164.4555376148. The cubic root of 26671601 is about 298.7787425880.

It can be divided in two parts, 26671 and 601, that added together give a palindrome (27272).

The spelling of 26671601 in words is "twenty-six million, six hundred seventy-one thousand, six hundred one".