26961897 has 4 divisors (see below), whose sum is σ = 35949200. Its totient is φ = 17974596.

The previous prime is 26961889. The next prime is 26961899. The reversal of 26961897 is 79816962.

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 not a de Polignac number, because 26961897 - 2³ = 26961889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26961899) 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, 4493647 + ... + 4493652.

It is an arithmetic number, because the mean of its divisors is an integer number (8987300).

Almost surely, 2^26961897 is an apocalyptic number.

It is an amenable number.

26961897 is a deficient number, since it is larger than the sum of its proper divisors (8987303).

26961897 is an equidigital number, since it uses as much as digits as its factorization.

26961897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8987302.

The product of its digits is 326592, while the sum is 48.

The square root of 26961897 is about 5192.4846653601. The cubic root of 26961897 is about 299.8588113407.

The spelling of 26961897 in words is "twenty-six million, nine hundred sixty-one thousand, eight hundred ninety-seven".