314047821 has 4 divisors (see below), whose sum is σ = 418730432. Its totient is φ = 209365212.

The previous prime is 314047801. The next prime is 314047841. The reversal of 314047821 is 128740413.

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 an interprime number because it is at equal distance from previous prime (314047801) and next prime (314047841).

It is not a de Polignac number, because 314047821 - 2¹⁴ = 314031437 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 (314047801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52341301 + ... + 52341306.

It is an arithmetic number, because the mean of its divisors is an integer number (104682608).

Almost surely, 2^314047821 is an apocalyptic number.

It is an amenable number.

314047821 is a deficient number, since it is larger than the sum of its proper divisors (104682611).

314047821 is a wasteful number, since it uses less digits than its factorization.

314047821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104682610.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 314047821 is about 17721.3944428761. The cubic root of 314047821 is about 679.7229414850.

The spelling of 314047821 in words is "three hundred fourteen million, forty-seven thousand, eight hundred twenty-one".