11790997 has 4 divisors (see below), whose sum is σ = 11817036. Its totient is φ = 11764960.

The previous prime is 11790991. The next prime is 11791007. The reversal of 11790997 is 79909711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79909711 = 7 ⋅11415673.

It can be written as a sum of positive squares in 2 ways, for example, as 1811716 + 9979281 = 1346^2 + 3159^2 .

It is a cyclic number.

It is not a de Polignac number, because 11790997 - 2¹⁹ = 11266709 is a prime.

It is a super-2 number, since 2×11790997² = 278055220508018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11790991) 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, 12328 + ... + 13249.

It is an arithmetic number, because the mean of its divisors is an integer number (2954259).

Almost surely, 2^11790997 is an apocalyptic number.

It is an amenable number.

11790997 is a deficient number, since it is larger than the sum of its proper divisors (26039).

11790997 is an equidigital number, since it uses as much as digits as its factorization.

11790997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26038.

The product of its (nonzero) digits is 35721, while the sum is 43.

The square root of 11790997 is about 3433.8021200995. The cubic root of 11790997 is about 227.6058968412.

The spelling of 11790997 in words is "eleven million, seven hundred ninety thousand, nine hundred ninety-seven".