312421673 has 8 divisors (see below), whose sum is σ = 334817088. Its totient is φ = 290760624.

The previous prime is 312421663. The next prime is 312421717. The reversal of 312421673 is 376124213.

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 312421673 - 2¹⁰ = 312420649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312421663) 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, 182711 + ... + 184412.

It is an arithmetic number, because the mean of its divisors is an integer number (41852136).

Almost surely, 2^312421673 is an apocalyptic number.

It is an amenable number.

312421673 is a deficient number, since it is larger than the sum of its proper divisors (22395415).

312421673 is a wasteful number, since it uses less digits than its factorization.

312421673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367183.

The product of its digits is 6048, while the sum is 29.

The square root of 312421673 is about 17675.4539687104. The cubic root of 312421673 is about 678.5477028275.

Adding to 312421673 its reverse (376124213), we get a palindrome (688545886).

The spelling of 312421673 in words is "three hundred twelve million, four hundred twenty-one thousand, six hundred seventy-three".