26970431 has 2 divisors, whose sum is σ = 26970432. Its totient is φ = 26970430.

The previous prime is 26970407. The next prime is 26970457. The reversal of 26970431 is 13407962.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26970431 - 2¹⁴ = 26954047 is a prime.

It is a super-2 number, since 2×26970431² = 1454808296651522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26970401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13485215 + 13485216.

It is an arithmetic number, because the mean of its divisors is an integer number (13485216).

Almost surely, 2^26970431 is an apocalyptic number.

26970431 is a deficient number, since it is larger than the sum of its proper divisors (1).

26970431 is an equidigital number, since it uses as much as digits as its factorization.

26970431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 26970431 is about 5193.3063649278. The cubic root of 26970431 is about 299.8904451825.

The spelling of 26970431 in words is "twenty-six million, nine hundred seventy thousand, four hundred thirty-one".