314807821 has 8 divisors (see below), whose sum is σ = 325601024. Its totient is φ = 304054560.

The previous prime is 314807807. The next prime is 314807839. The reversal of 314807821 is 128708413.

It is a happy number.

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 314807821 - 2¹¹ = 314805773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (314804821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6505 + ... + 25921.

It is an arithmetic number, because the mean of its divisors is an integer number (40700128).

Almost surely, 2^314807821 is an apocalyptic number.

314807821 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

314807821 is a deficient number, since it is larger than the sum of its proper divisors (10793203).

314807821 is a wasteful number, since it uses less digits than its factorization.

314807821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19971.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 314807821 is about 17742.8244932987. The cubic root of 314807821 is about 680.2708126929.

The spelling of 314807821 in words is "three hundred fourteen million, eight hundred seven thousand, eight hundred twenty-one".