26931069 has 16 divisors (see below), whose sum is σ = 43525440. Its totient is φ = 16321680.

The previous prime is 26931067. The next prime is 26931071. The reversal of 26931069 is 96013962.

It is an interprime number because it is at equal distance from previous prime (26931067) and next prime (26931071).

It is not a de Polignac number, because 26931069 - 2¹ = 26931067 is a prime.

It is a super-2 number, since 2×26931069² = 1450564954965522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26931067) 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, 45042 + ... + 45635.

It is an arithmetic number, because the mean of its divisors is an integer number (2720340).

Almost surely, 2^26931069 is an apocalyptic number.

It is an amenable number.

26931069 is a deficient number, since it is larger than the sum of its proper divisors (16594371).

26931069 is a wasteful number, since it uses less digits than its factorization.

26931069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90697 (or 90691 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 26931069 is about 5189.5152952853. The cubic root of 26931069 is about 299.7444824310.

The spelling of 26931069 in words is "twenty-six million, nine hundred thirty-one thousand, sixty-nine".