312421727 has 8 divisors (see below), whose sum is σ = 323405040. Its totient is φ = 301452480.

The previous prime is 312421721. The next prime is 312421729. The reversal of 312421727 is 727124213.

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 312421727 - 2⁶ = 312421663 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312421727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312421721) 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, 63788 + ... + 68510.

It is an arithmetic number, because the mean of its divisors is an integer number (40425630).

Almost surely, 2^312421727 is an apocalyptic number.

312421727 is a deficient number, since it is larger than the sum of its proper divisors (10983313).

312421727 is a wasteful number, since it uses less digits than its factorization.

312421727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7033.

The product of its digits is 4704, while the sum is 29.

The square root of 312421727 is about 17675.4554962524. The cubic root of 312421727 is about 678.5477419216.

The spelling of 312421727 in words is "three hundred twelve million, four hundred twenty-one thousand, seven hundred twenty-seven".