26730031 has 4 divisors (see below), whose sum is σ = 26757432. Its totient is φ = 26702632.

The previous prime is 26730023. The next prime is 26730043. The reversal of 26730031 is 13003762.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26730031 - 2³ = 26730023 is a prime.

It is a super-2 number, since 2×26730031² = 1428989114521922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26729984 and 26730011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26730061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12181 + ... + 14206.

It is an arithmetic number, because the mean of its divisors is an integer number (6689358).

Almost surely, 2^26730031 is an apocalyptic number.

26730031 is a deficient number, since it is larger than the sum of its proper divisors (27401).

26730031 is a wasteful number, since it uses less digits than its factorization.

26730031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27400.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 26730031 is about 5170.1093798874. The cubic root of 26730031 is about 298.9967636104.

Adding to 26730031 its reverse (13003762), we get a palindrome (39733793).

The spelling of 26730031 in words is "twenty-six million, seven hundred thirty thousand, thirty-one".