11704821 has 8 divisors (see below), whose sum is σ = 15706464. Its totient is φ = 7753200.

The previous prime is 11704813. The next prime is 11704831. The reversal of 11704821 is 12840711.

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

It is not a de Polignac number, because 11704821 - 2³ = 11704813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11704791 and 11704800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11704811) 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, 11955 + ... + 12896.

It is an arithmetic number, because the mean of its divisors is an integer number (1963308).

Almost surely, 2^11704821 is an apocalyptic number.

It is an amenable number.

11704821 is a deficient number, since it is larger than the sum of its proper divisors (4001643).

11704821 is a wasteful number, since it uses less digits than its factorization.

11704821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25011.

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 11704821 is about 3421.2309188361. The cubic root of 11704821 is about 227.0500449217.

The spelling of 11704821 in words is "eleven million, seven hundred four thousand, eight hundred twenty-one".