409828867 has 4 divisors (see below), whose sum is σ = 468375856. Its totient is φ = 351281880.

The previous prime is 409828831. The next prime is 409828919. The reversal of 409828867 is 768828904.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-409828867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409828567) 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, 29273484 + ... + 29273497.

It is an arithmetic number, because the mean of its divisors is an integer number (117093964).

Almost surely, 2^409828867 is an apocalyptic number.

409828867 is a deficient number, since it is larger than the sum of its proper divisors (58546989).

409828867 is an equidigital number, since it uses as much as digits as its factorization.

409828867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58546988.

The product of its (nonzero) digits is 1548288, while the sum is 52.

The square root of 409828867 is about 20244.2304620353. The cubic root of 409828867 is about 742.7925087837.

The spelling of 409828867 in words is "four hundred nine million, eight hundred twenty-eight thousand, eight hundred sixty-seven".