26650469 has 2 divisors, whose sum is σ = 26650470. Its totient is φ = 26650468.

The previous prime is 26650453. The next prime is 26650487. The reversal of 26650469 is 96405662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26646244 + 4225 = 5162^2 + 65^2 .

It is a cyclic number.

It is not a de Polignac number, because 26650469 - 2⁴ = 26650453 is a prime.

It is a super-2 number, since 2×26650469² = 1420494995839922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26650409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13325234 + 13325235.

It is an arithmetic number, because the mean of its divisors is an integer number (13325235).

Almost surely, 2^26650469 is an apocalyptic number.

It is an amenable number.

26650469 is a deficient number, since it is larger than the sum of its proper divisors (1).

26650469 is an equidigital number, since it uses as much as digits as its factorization.

26650469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 26650469 is about 5162.4092243835. The cubic root of 26650469 is about 298.6998139353.

The spelling of 26650469 in words is "twenty-six million, six hundred fifty thousand, four hundred sixty-nine".