26828731 has 8 divisors (see below), whose sum is σ = 27199728. Its totient is φ = 26460000.

The previous prime is 26828713. The next prime is 26828749. The reversal of 26828731 is 13782862.

It is an interprime number because it is at equal distance from previous prime (26828713) and next prime (26828749).

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

It is a cyclic number.

It is not a de Polignac number, because 26828731 - 2¹³ = 26820539 is a prime.

It is a super-2 number, since 2×26828731² = 1439561614140722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26828701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49321 + ... + 49861.

It is an arithmetic number, because the mean of its divisors is an integer number (3399966).

Almost surely, 2^26828731 is an apocalyptic number.

26828731 is a deficient number, since it is larger than the sum of its proper divisors (370997).

26828731 is a wasteful number, since it uses less digits than its factorization.

26828731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133.

The product of its digits is 32256, while the sum is 37.

The square root of 26828731 is about 5179.6458373136. The cubic root of 26828731 is about 299.3643243767.

The spelling of 26828731 in words is "twenty-six million, eight hundred twenty-eight thousand, seven hundred thirty-one".