26387949 has 16 divisors (see below), whose sum is σ = 40390272. Its totient is φ = 15011328.

The previous prime is 26387947. The next prime is 26387957. The reversal of 26387949 is 94978362.

It is not a de Polignac number, because 26387949 - 2¹ = 26387947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26387898 and 26387907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26387947) 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, 2197 + ... + 7589.

It is an arithmetic number, because the mean of its divisors is an integer number (2524392).

Almost surely, 2^26387949 is an apocalyptic number.

It is an amenable number.

26387949 is a deficient number, since it is larger than the sum of its proper divisors (14002323).

26387949 is a wasteful number, since it uses less digits than its factorization.

26387949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5636.

The product of its digits is 653184, while the sum is 48.

The square root of 26387949 is about 5136.9201862595. The cubic root of 26387949 is about 297.7157966352.

The spelling of 26387949 in words is "twenty-six million, three hundred eighty-seven thousand, nine hundred forty-nine".