26878772 has 6 divisors (see below), whose sum is σ = 47037858. Its totient is φ = 13439384.

The previous prime is 26878769. The next prime is 26878793. The reversal of 26878772 is 27787862.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 17673616 + 9205156 = 4204^2 + 3034^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3359843 + ... + 3359850.

It is an arithmetic number, because the mean of its divisors is an integer number (7839643).

Almost surely, 2^26878772 is an apocalyptic number.

It is an amenable number.

26878772 is a deficient number, since it is larger than the sum of its proper divisors (20159086).

26878772 is a wasteful number, since it uses less digits than its factorization.

26878772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6719697 (or 6719695 counting only the distinct ones).

The product of its digits is 526848, while the sum is 47.

The square root of 26878772 is about 5184.4741295526. The cubic root of 26878772 is about 299.5503337450.

The spelling of 26878772 in words is "twenty-six million, eight hundred seventy-eight thousand, seven hundred seventy-two".