26420423 has 2 divisors, whose sum is σ = 26420424. Its totient is φ = 26420422.

The previous prime is 26420419. The next prime is 26420437. The reversal of 26420423 is 32402462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26420423 - 2² = 26420419 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26420413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13210211 + 13210212.

It is an arithmetic number, because the mean of its divisors is an integer number (13210212).

Almost surely, 2^26420423 is an apocalyptic number.

26420423 is a deficient number, since it is larger than the sum of its proper divisors (1).

26420423 is an equidigital number, since it uses as much as digits as its factorization.

26420423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 26420423 is about 5140.0800577423. The cubic root of 26420423 is about 297.8378733143.

Adding to 26420423 its reverse (32402462), we get a palindrome (58822885).

The spelling of 26420423 in words is "twenty-six million, four hundred twenty thousand, four hundred twenty-three".