11720829 has 8 divisors (see below), whose sum is σ = 15668352. Its totient is φ = 7793600.

The previous prime is 11720809. The next prime is 11720851. The reversal of 11720829 is 92802711.

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

It is a cyclic number.

It is not a de Polignac number, because 11720829 - 2¹⁹ = 11196541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11720796 and 11720805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11720809) 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, 3669 + ... + 6074.

It is an arithmetic number, because the mean of its divisors is an integer number (1958544).

Almost surely, 2^11720829 is an apocalyptic number.

It is an amenable number.

11720829 is a deficient number, since it is larger than the sum of its proper divisors (3947523).

11720829 is an equidigital number, since it uses as much as digits as its factorization.

11720829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10147.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 11720829 is about 3423.5696283266. The cubic root of 11720829 is about 227.1535054652.

The spelling of 11720829 in words is "eleven million, seven hundred twenty thousand, eight hundred twenty-nine".