11147797 has 2 divisors, whose sum is σ = 11147798. Its totient is φ = 11147796.

The previous prime is 11147791. The next prime is 11147809. The reversal of 11147797 is 79774111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8071281 + 3076516 = 2841^2 + 1754^2 .

It is a cyclic number.

It is not a de Polignac number, because 11147797 - 2²³ = 2759189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11147791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5573898 + 5573899.

It is an arithmetic number, because the mean of its divisors is an integer number (5573899).

Almost surely, 2^11147797 is an apocalyptic number.

It is an amenable number.

11147797 is a deficient number, since it is larger than the sum of its proper divisors (1).

11147797 is an equidigital number, since it uses as much as digits as its factorization.

11147797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12348, while the sum is 37.

The square root of 11147797 is about 3338.8316818911. The cubic root of 11147797 is about 223.3896343292.

It can be divided in two parts, 1114 and 7797, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 11147797 in words is "eleven million, one hundred forty-seven thousand, seven hundred ninety-seven".