26626493 has 4 divisors (see below), whose sum is σ = 26639520. Its totient is φ = 26613468.

The previous prime is 26626459. The next prime is 26626513. The reversal of 26626493 is 39462662.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39462662 = 2 ⋅19731331.

It is a cyclic number.

It is not a de Polignac number, because 26626493 - 2¹⁴ = 26610109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26626993) 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, 2705 + ... + 7782.

It is an arithmetic number, because the mean of its divisors is an integer number (6659880).

Almost surely, 2^26626493 is an apocalyptic number.

It is an amenable number.

26626493 is a deficient number, since it is larger than the sum of its proper divisors (13027).

26626493 is a wasteful number, since it uses less digits than its factorization.

26626493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13026.

The product of its digits is 93312, while the sum is 38.

The square root of 26626493 is about 5160.0865302822. The cubic root of 26626493 is about 298.6102123169.

The spelling of 26626493 in words is "twenty-six million, six hundred twenty-six thousand, four hundred ninety-three".