26900997 has 4 divisors (see below), whose sum is σ = 35868000. Its totient is φ = 17933996.

The previous prime is 26900989. The next prime is 26900999. The reversal of 26900997 is 79900962.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26900997 - 2³ = 26900989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26900999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4483497 + ... + 4483502.

It is an arithmetic number, because the mean of its divisors is an integer number (8967000).

Almost surely, 2^26900997 is an apocalyptic number.

It is an amenable number.

26900997 is a deficient number, since it is larger than the sum of its proper divisors (8967003).

26900997 is an equidigital number, since it uses as much as digits as its factorization.

26900997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8967002.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 26900997 is about 5186.6171055901. The cubic root of 26900997 is about 299.6328731317.

The spelling of 26900997 in words is "twenty-six million, nine hundred thousand, nine hundred ninety-seven".