26970657 has 8 divisors (see below), whose sum is σ = 41098176. Its totient is φ = 15411792.

The previous prime is 26970641. The next prime is 26970683. The reversal of 26970657 is 75607962.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26970657 - 2⁴ = 26970641 is a prime.

It is a super-4 number, since 4×26970657⁴ (a number of 31 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (26970617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 642138 + ... + 642179.

It is an arithmetic number, because the mean of its divisors is an integer number (5137272).

Almost surely, 2^26970657 is an apocalyptic number.

It is an amenable number.

26970657 is a deficient number, since it is larger than the sum of its proper divisors (14127519).

26970657 is a wasteful number, since it uses less digits than its factorization.

26970657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284327.

The product of its (nonzero) digits is 158760, while the sum is 42.

The square root of 26970657 is about 5193.3281236602. The cubic root of 26970657 is about 299.8912828289.

The spelling of 26970657 in words is "twenty-six million, nine hundred seventy thousand, six hundred fifty-seven".