26970805 has 8 divisors (see below), whose sum is σ = 32437944. Its totient is φ = 21528000.

The previous prime is 26970803. The next prime is 26970821. The reversal of 26970805 is 50807962.

It can be written as a sum of positive squares in 4 ways, for example, as 3709476 + 23261329 = 1926^2 + 4823^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26970805 - 2¹ = 26970803 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 (26970803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3546 + ... + 8155.

It is an arithmetic number, because the mean of its divisors is an integer number (4054743).

Almost surely, 2^26970805 is an apocalyptic number.

It is an amenable number.

26970805 is a deficient number, since it is larger than the sum of its proper divisors (5467139).

26970805 is a wasteful number, since it uses less digits than its factorization.

26970805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12167.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 26970805 is about 5193.3423726922. The cubic root of 26970805 is about 299.8918313736.

The spelling of 26970805 in words is "twenty-six million, nine hundred seventy thousand, eight hundred five".