26972331 has 4 divisors (see below), whose sum is σ = 35963112. Its totient is φ = 17981552.

The previous prime is 26972317. The next prime is 26972333. The reversal of 26972331 is 13327962.

It is a happy number.

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 26972331 - 2⁷ = 26972203 is a prime.

It is a super-2 number, since 2×26972331² = 1455013279147122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26972292 and 26972301.

It is not an unprimeable number, because it can be changed into a prime (26972333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4495386 + ... + 4495391.

It is an arithmetic number, because the mean of its divisors is an integer number (8990778).

Almost surely, 2^26972331 is an apocalyptic number.

26972331 is a deficient number, since it is larger than the sum of its proper divisors (8990781).

26972331 is an equidigital number, since it uses as much as digits as its factorization.

26972331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8990780.

The product of its digits is 13608, while the sum is 33.

The square root of 26972331 is about 5193.4892894854. The cubic root of 26972331 is about 299.8974871966.

The spelling of 26972331 in words is "twenty-six million, nine hundred seventy-two thousand, three hundred thirty-one".