312772447 has 8 divisors (see below), whose sum is σ = 337754816. Its totient is φ = 287921952.

The previous prime is 312772399. The next prime is 312772459. The reversal of 312772447 is 744277213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312772447 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 (312778447) 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, 28008 + ... + 37549.

It is an arithmetic number, because the mean of its divisors is an integer number (42219352).

Almost surely, 2^312772447 is an apocalyptic number.

312772447 is a deficient number, since it is larger than the sum of its proper divisors (24982369).

312772447 is a wasteful number, since it uses less digits than its factorization.

312772447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65937.

The product of its digits is 65856, while the sum is 37.

The square root of 312772447 is about 17685.3738156704. The cubic root of 312772447 is about 678.8015561818.

The spelling of 312772447 in words is "three hundred twelve million, seven hundred seventy-two thousand, four hundred forty-seven".