26887972 has 6 divisors (see below), whose sum is σ = 47053958. Its totient is φ = 13443984.

The previous prime is 26887963. The next prime is 26887979. The reversal of 26887972 is 27978862.

It can be written as a sum of positive squares in only one way, i.e., 24860196 + 2027776 = 4986^2 + 1424^2 .

It is not an unprimeable number, because it can be changed into a prime (26887979) by changing a digit.

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, 3360993 + ... + 3361000.

Almost surely, 2^26887972 is an apocalyptic number.

It is an amenable number.

26887972 is a deficient number, since it is larger than the sum of its proper divisors (20165986).

26887972 is a wasteful number, since it uses less digits than its factorization.

26887972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6721997 (or 6721995 counting only the distinct ones).

The product of its digits is 677376, while the sum is 49.

The square root of 26887972 is about 5185.3613181725. The cubic root of 26887972 is about 299.5845062971.

The spelling of 26887972 in words is "twenty-six million, eight hundred eighty-seven thousand, nine hundred seventy-two".