26507964 has 96 divisors (see below), whose sum is σ = 78865920. Its totient is φ = 6746112.

The previous prime is 26507963. The next prime is 26507969. The reversal of 26507964 is 46970562.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26507963) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26644 + ... + 27620.

It is an arithmetic number, because the mean of its divisors is an integer number (821520).

Almost surely, 2^26507964 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26507964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39432960).

26507964 is an abundant number, since it is smaller than the sum of its proper divisors (52357956).

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

26507964 is a wasteful number, since it uses less digits than its factorization.

26507964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027 (or 1025 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 26507964 is about 5148.5885444459. The cubic root of 26507964 is about 298.1664610576.

The spelling of 26507964 in words is "twenty-six million, five hundred seven thousand, nine hundred sixty-four".