26487983 has 4 divisors (see below), whose sum is σ = 26520840. Its totient is φ = 26455128.

The previous prime is 26487971. The next prime is 26487997. The reversal of 26487983 is 38978462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26487983 - 2¹² = 26483887 is a prime.

It is a super-2 number, since 2×26487983² = 1403226486816578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26487953) 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, 15188 + ... + 16841.

It is an arithmetic number, because the mean of its divisors is an integer number (6630210).

Almost surely, 2^26487983 is an apocalyptic number.

26487983 is a deficient number, since it is larger than the sum of its proper divisors (32857).

26487983 is an equidigital number, since it uses as much as digits as its factorization.

26487983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32856.

The product of its digits is 580608, while the sum is 47.

The square root of 26487983 is about 5146.6477439203. The cubic root of 26487983 is about 298.0915255704.

The spelling of 26487983 in words is "twenty-six million, four hundred eighty-seven thousand, nine hundred eighty-three".