26117964 has 30 divisors (see below), whose sum is σ = 68278364. Its totient is φ = 8705880.

The previous prime is 26117941. The next prime is 26117969. The reversal of 26117964 is 46971162.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (26117969) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 39982 + ... + 40629.

Almost surely, 2^26117964 is an apocalyptic number.

It is an amenable number.

26117964 is an abundant number, since it is smaller than the sum of its proper divisors (42160400).

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

26117964 is a wasteful number, since it uses less digits than its factorization.

26117964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80627 (or 80616 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 26117964 is about 5110.5737446983. The cubic root of 26117964 is about 296.6969667042.

It can be divided in two parts, 261 and 17964, that added together give a square (18225 = 135²).

The spelling of 26117964 in words is "twenty-six million, one hundred seventeen thousand, nine hundred sixty-four".