26990377 has 2 divisors, whose sum is σ = 26990378. Its totient is φ = 26990376.

The previous prime is 26990357. The next prime is 26990399. The reversal of 26990377 is 77309962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18352656 + 8637721 = 4284^2 + 2939^2 .

It is a cyclic number.

It is not a de Polignac number, because 26990377 - 2¹¹ = 26988329 is a prime.

It is not a weakly prime, because it can be changed into another prime (26990357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13495188 + 13495189.

It is an arithmetic number, because the mean of its divisors is an integer number (13495189).

Almost surely, 2^26990377 is an apocalyptic number.

It is an amenable number.

26990377 is a deficient number, since it is larger than the sum of its proper divisors (1).

26990377 is an equidigital number, since it uses as much as digits as its factorization.

26990377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 142884, while the sum is 43.

The square root of 26990377 is about 5195.2263665792. The cubic root of 26990377 is about 299.9643550242.

The spelling of 26990377 in words is "twenty-six million, nine hundred ninety thousand, three hundred seventy-seven".