413921 has 4 divisors (see below), whose sum is σ = 418992. Its totient is φ = 408852.

The previous prime is 413911. The next prime is 413923. The reversal of 413921 is 129314.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-413921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14.

It is a zygodrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 413893 and 413902.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 413921.

It is not an unprimeable number, because it can be changed into a prime (413923) 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, 2411 + ... + 2576.

It is an arithmetic number, because the mean of its divisors is an integer number (104748).

2⁴¹³⁹²¹ is an apocalyptic number.

It is an amenable number.

413921 is a deficient number, since it is larger than the sum of its proper divisors (5071).

413921 is an equidigital number, since it uses as much as digits as its factorization.

413921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5070.

The product of its digits is 216, while the sum is 20.

The square root of 413921 is about 643.3669248570. The cubic root of 413921 is about 74.5256581742.

The spelling of 413921 in words is "four hundred thirteen thousand, nine hundred twenty-one".