26507864 has 8 divisors (see below), whose sum is σ = 49702260. Its totient is φ = 13253928.

The previous prime is 26507863. The next prime is 26507893. The reversal of 26507864 is 46870562.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26507863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1656734 + ... + 1656749.

Almost surely, 2^26507864 is an apocalyptic number.

It is an amenable number.

26507864 is a deficient number, since it is larger than the sum of its proper divisors (23194396).

26507864 is a wasteful number, since it uses less digits than its factorization.

26507864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3313489 (or 3313485 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 26507864 is about 5148.5788330373. The cubic root of 26507864 is about 298.1660861177.

The spelling of 26507864 in words is "twenty-six million, five hundred seven thousand, eight hundred sixty-four".