26298987 has 24 divisors (see below), whose sum is σ = 41515152. Its totient is φ = 14710080.

The previous prime is 26298977. The next prime is 26298997. The reversal of 26298987 is 78989262.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (26298977) and next prime (26298997).

It is not a de Polignac number, because 26298987 - 2¹⁴ = 26282603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26298967) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1933 + ... + 7505.

It is an arithmetic number, because the mean of its divisors is an integer number (1729798).

Almost surely, 2^26298987 is an apocalyptic number.

26298987 is a deficient number, since it is larger than the sum of its proper divisors (15216165).

26298987 is a wasteful number, since it uses less digits than its factorization.

26298987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5611 (or 5600 counting only the distinct ones).

The product of its digits is 870912, while the sum is 51.

The square root of 26298987 is about 5128.2537963716. The cubic root of 26298987 is about 297.3808557111.

The spelling of 26298987 in words is "twenty-six million, two hundred ninety-eight thousand, nine hundred eighty-seven".