26853493 has 2 divisors, whose sum is σ = 26853494. Its totient is φ = 26853492.

The previous prime is 26853487. The next prime is 26853499. The reversal of 26853493 is 39435862.

It is a balanced prime because it is at equal distance from previous prime (26853487) and next prime (26853499).

It can be written as a sum of positive squares in only one way, i.e., 25583364 + 1270129 = 5058^2 + 1127^2 .

It is a cyclic number.

It is not a de Polignac number, because 26853493 - 2⁵ = 26853461 is a prime.

It is a super-2 number, since 2×26853493² = 1442220172602098, which contains 22 as substring.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26853499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13426746 + 13426747.

It is an arithmetic number, because the mean of its divisors is an integer number (13426747).

Almost surely, 2^26853493 is an apocalyptic number.

It is an amenable number.

26853493 is a deficient number, since it is larger than the sum of its proper divisors (1).

26853493 is an equidigital number, since it uses as much as digits as its factorization.

26853493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 40.

The square root of 26853493 is about 5182.0356038916. The cubic root of 26853493 is about 299.4563970626.

The spelling of 26853493 in words is "twenty-six million, eight hundred fifty-three thousand, four hundred ninety-three".