26763997 has 8 divisors (see below), whose sum is σ = 28865144. Its totient is φ = 24668928.

The previous prime is 26763983. The next prime is 26764007. The reversal of 26763997 is 79936762.

It can be written as a sum of positive squares in 4 ways, for example, as 8964036 + 17799961 = 2994^2 + 4219^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26763997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26763997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26763907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12433 + ... + 14425.

It is an arithmetic number, because the mean of its divisors is an integer number (3608143).

Almost surely, 2^26763997 is an apocalyptic number.

It is an amenable number.

26763997 is a deficient number, since it is larger than the sum of its proper divisors (2101147).

26763997 is a wasteful number, since it uses less digits than its factorization.

26763997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3039.

The product of its digits is 857304, while the sum is 49.

The square root of 26763997 is about 5173.3931804958. The cubic root of 26763997 is about 299.1233556255.

The spelling of 26763997 in words is "twenty-six million, seven hundred sixty-three thousand, nine hundred ninety-seven".