26704157 has 4 divisors (see below), whose sum is σ = 27625020. Its totient is φ = 25783296.

The previous prime is 26704151. The next prime is 26704159. The reversal of 26704157 is 75140762.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75140762 = 2 ⋅37570381.

It can be written as a sum of positive squares in 2 ways, for example, as 17131321 + 9572836 = 4139^2 + 3094^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26704157 is a prime.

It is a super-2 number, since 2×26704157² = 1426224002161298, 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 (26704151) 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, 460388 + ... + 460445.

It is an arithmetic number, because the mean of its divisors is an integer number (6906255).

Almost surely, 2^26704157 is an apocalyptic number.

It is an amenable number.

26704157 is a deficient number, since it is larger than the sum of its proper divisors (920863).

26704157 is an equidigital number, since it uses as much as digits as its factorization.

26704157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920862.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 26704157 is about 5167.6065059174. The cubic root of 26704157 is about 298.9002586747.

The spelling of 26704157 in words is "twenty-six million, seven hundred four thousand, one hundred fifty-seven".