26287963 has 16 divisors (see below), whose sum is σ = 30240000. Its totient is φ = 22649760.

The previous prime is 26287939. The next prime is 26287973. The reversal of 26287963 is 36978262.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26287963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26287973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16788 + ... + 18286.

It is an arithmetic number, because the mean of its divisors is an integer number (1890000).

Almost surely, 2^26287963 is an apocalyptic number.

26287963 is a deficient number, since it is larger than the sum of its proper divisors (3952037).

26287963 is a wasteful number, since it uses less digits than its factorization.

26287963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602.

The product of its digits is 217728, while the sum is 43.

The square root of 26287963 is about 5127.1788539118. The cubic root of 26287963 is about 297.3392979034.

The spelling of 26287963 in words is "twenty-six million, two hundred eighty-seven thousand, nine hundred sixty-three".