26988828 has 12 divisors (see below), whose sum is σ = 62973960. Its totient is φ = 8996272.

The previous prime is 26988823. The next prime is 26988833. The reversal of 26988828 is 82888962.

It is an interprime number because it is at equal distance from previous prime (26988823) and next prime (26988833).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26988823) 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 3 ways as a sum of consecutive naturals, for example, 1124523 + ... + 1124546.

It is an arithmetic number, because the mean of its divisors is an integer number (5247830).

Almost surely, 2^26988828 is an apocalyptic number.

It is an amenable number.

26988828 is an abundant number, since it is smaller than the sum of its proper divisors (35985132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26988828 is a wasteful number, since it uses less digits than its factorization.

26988828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2249076 (or 2249074 counting only the distinct ones).

The product of its digits is 884736, while the sum is 51.

The square root of 26988828 is about 5195.0772852769. The cubic root of 26988828 is about 299.9586165138.

The spelling of 26988828 in words is "twenty-six million, nine hundred eighty-eight thousand, eight hundred twenty-eight".