26838257 has 8 divisors (see below), whose sum is σ = 28842336. Its totient is φ = 24881472.

The previous prime is 26838233. The next prime is 26838271. The reversal of 26838257 is 75283862.

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

It is not a de Polignac number, because 26838257 - 2¹² = 26834161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26838557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10643 + ... + 12920.

It is an arithmetic number, because the mean of its divisors is an integer number (3605292).

Almost surely, 2^26838257 is an apocalyptic number.

It is an amenable number.

26838257 is a deficient number, since it is larger than the sum of its proper divisors (2004079).

26838257 is a wasteful number, since it uses less digits than its factorization.

26838257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23647.

The product of its digits is 161280, while the sum is 41.

The square root of 26838257 is about 5180.5653166426. The cubic root of 26838257 is about 299.3997516593.

The spelling of 26838257 in words is "twenty-six million, eight hundred thirty-eight thousand, two hundred fifty-seven".