26313397 has 4 divisors (see below), whose sum is σ = 28705536. Its totient is φ = 23921260.

The previous prime is 26313367. The next prime is 26313409. The reversal of 26313397 is 79331362.

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 26313397 - 2¹¹ = 26311349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26313317) 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, 1196053 + ... + 1196074.

It is an arithmetic number, because the mean of its divisors is an integer number (7176384).

Almost surely, 2^26313397 is an apocalyptic number.

It is an amenable number.

26313397 is a deficient number, since it is larger than the sum of its proper divisors (2392139).

26313397 is a wasteful number, since it uses less digits than its factorization.

26313397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392138.

The product of its digits is 20412, while the sum is 34.

The square root of 26313397 is about 5129.6585656357. The cubic root of 26313397 is about 297.4351604098.

The spelling of 26313397 in words is "twenty-six million, three hundred thirteen thousand, three hundred ninety-seven".