26742497 has 4 divisors (see below), whose sum is σ = 26757120. Its totient is φ = 26727876.

The previous prime is 26742493. The next prime is 26742503. The reversal of 26742497 is 79424762.

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 26742497 - 2² = 26742493 is a prime.

It is a super-2 number, since 2×26742497² = 1430322291590018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26742493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4097 + ... + 8382.

It is an arithmetic number, because the mean of its divisors is an integer number (6689280).

Almost surely, 2^26742497 is an apocalyptic number.

It is an amenable number.

26742497 is a deficient number, since it is larger than the sum of its proper divisors (14623).

26742497 is a wasteful number, since it uses less digits than its factorization.

26742497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14622.

The product of its digits is 169344, while the sum is 41.

The square root of 26742497 is about 5171.3148231373. The cubic root of 26742497 is about 299.0432371115.

The spelling of 26742497 in words is "twenty-six million, seven hundred forty-two thousand, four hundred ninety-seven".