26287616 has 20 divisors (see below), whose sum is σ = 52524912. Its totient is φ = 13143552.

The previous prime is 26287607. The next prime is 26287619. The reversal of 26287616 is 61678262.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 26287616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26287619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25160 + ... + 26183.

Almost surely, 2^26287616 is an apocalyptic number.

It is an amenable number.

26287616 is a deficient number, since it is larger than the sum of its proper divisors (26237296).

26287616 is an frugal number, since it uses more digits than its factorization.

26287616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51361 (or 51345 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 26287616 is about 5127.1450145281. The cubic root of 26287616 is about 297.3379896089.

It can be divided in two parts, 262 and 87616, that added together give a palindrome (87878).

The spelling of 26287616 in words is "twenty-six million, two hundred eighty-seven thousand, six hundred sixteen".