26604947 has 2 divisors, whose sum is σ = 26604948. Its totient is φ = 26604946.

The previous prime is 26604943. The next prime is 26604953. The reversal of 26604947 is 74940662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26604947 - 2² = 26604943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26604947.

It is not a weakly prime, because it can be changed into another prime (26604943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13302473 + 13302474.

It is an arithmetic number, because the mean of its divisors is an integer number (13302474).

Almost surely, 2^26604947 is an apocalyptic number.

26604947 is a deficient number, since it is larger than the sum of its proper divisors (1).

26604947 is an equidigital number, since it uses as much as digits as its factorization.

26604947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 26604947 is about 5157.9983520742. The cubic root of 26604947 is about 298.5296460450.

The spelling of 26604947 in words is "twenty-six million, six hundred four thousand, nine hundred forty-seven".