26684493 has 48 divisors (see below), whose sum is σ = 42517440. Its totient is φ = 14826240.

The previous prime is 26684477. The next prime is 26684513. The reversal of 26684493 is 39448662.

It is a happy number.

It is not a de Polignac number, because 26684493 - 2⁴ = 26684477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26684423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 365505 + ... + 365577.

It is an arithmetic number, because the mean of its divisors is an integer number (885780).

Almost surely, 2^26684493 is an apocalyptic number.

It is an amenable number.

26684493 is a deficient number, since it is larger than the sum of its proper divisors (15832947).

26684493 is a wasteful number, since it uses less digits than its factorization.

26684493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 159 counting only the distinct ones).

The product of its digits is 248832, while the sum is 42.

The square root of 26684493 is about 5165.7035338858. The cubic root of 26684493 is about 298.8268741207.

The spelling of 26684493 in words is "twenty-six million, six hundred eighty-four thousand, four hundred ninety-three".