26428797 has 6 divisors (see below), whose sum is σ = 38174942. Its totient is φ = 17619192.

The previous prime is 26428793. The next prime is 26428823. The reversal of 26428797 is 79782462.

It can be written as a sum of positive squares in only one way, i.e., 18844281 + 7584516 = 4341^2 + 2754^2 .

It is not a de Polignac number, because 26428797 - 2² = 26428793 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 (26428793) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1468258 + ... + 1468275.

Almost surely, 2^26428797 is an apocalyptic number.

It is an amenable number.

26428797 is a deficient number, since it is larger than the sum of its proper divisors (11746145).

26428797 is a wasteful number, since it uses less digits than its factorization.

26428797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2936539 (or 2936536 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 26428797 is about 5140.8945719592. The cubic root of 26428797 is about 297.8693367381.

It can be divided in two parts, 26428 and 797, that added together give a square (27225 = 165²).

The spelling of 26428797 in words is "twenty-six million, four hundred twenty-eight thousand, seven hundred ninety-seven".