26487870 has 64 divisors (see below), whose sum is σ = 67931136. Its totient is φ = 6586880.

The previous prime is 26487859. The next prime is 26487889. The reversal of 26487870 is 7878462.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85015 + ... + 85325.

It is an arithmetic number, because the mean of its divisors is an integer number (1061424).

Almost surely, 2^26487870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26487870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33965568).

26487870 is an abundant number, since it is smaller than the sum of its proper divisors (41443266).

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

26487870 is a wasteful number, since it uses less digits than its factorization.

26487870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505.

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 26487870 is about 5146.6367658890. The cubic root of 26487870 is about 298.0911016751.

The spelling of 26487870 in words is "twenty-six million, four hundred eighty-seven thousand, eight hundred seventy".