26097639 has 16 divisors (see below), whose sum is σ = 35584128. Its totient is φ = 17008992.

The previous prime is 26097637. The next prime is 26097641. The reversal of 26097639 is 93679062.

It is an interprime number because it is at equal distance from previous prime (26097637) and next prime (26097641).

It is not a de Polignac number, because 26097639 - 2¹ = 26097637 is a prime.

It is a super-2 number, since 2×26097639² = 1362173522748642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26097639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26097637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31144 + ... + 31970.

It is an arithmetic number, because the mean of its divisors is an integer number (2224008).

Almost surely, 2^26097639 is an apocalyptic number.

26097639 is a deficient number, since it is larger than the sum of its proper divisors (9486489).

26097639 is a wasteful number, since it uses less digits than its factorization.

26097639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054.

The product of its (nonzero) digits is 122472, while the sum is 42.

The square root of 26097639 is about 5108.5848333956. The cubic root of 26097639 is about 296.6199835366.

The spelling of 26097639 in words is "twenty-six million, ninety-seven thousand, six hundred thirty-nine".