26949739 has 4 divisors (see below), whose sum is σ = 27391600. Its totient is φ = 26507880.

The previous prime is 26949719. The next prime is 26949749. The reversal of 26949739 is 93794962.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26949739 - 2¹³ = 26941547 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 26949692 and 26949701.

It is not an unprimeable number, because it can be changed into a prime (26949719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220839 + ... + 220960.

It is an arithmetic number, because the mean of its divisors is an integer number (6847900).

Almost surely, 2^26949739 is an apocalyptic number.

26949739 is a deficient number, since it is larger than the sum of its proper divisors (441861).

26949739 is an equidigital number, since it uses as much as digits as its factorization.

26949739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441860.

The product of its digits is 734832, while the sum is 49.

The square root of 26949739 is about 5191.3138028827. The cubic root of 26949739 is about 299.8137325202.

The spelling of 26949739 in words is "twenty-six million, nine hundred forty-nine thousand, seven hundred thirty-nine".