312896447 has 4 divisors (see below), whose sum is σ = 314889576. Its totient is φ = 310903320.

The previous prime is 312896431. The next prime is 312896459. The reversal of 312896447 is 744698213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 312896447 - 2⁴ = 312896431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312896398 and 312896407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312896417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 996329 + ... + 996642.

It is an arithmetic number, because the mean of its divisors is an integer number (78722394).

Almost surely, 2^312896447 is an apocalyptic number.

312896447 is a deficient number, since it is larger than the sum of its proper divisors (1993129).

312896447 is a wasteful number, since it uses less digits than its factorization.

312896447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993128.

The product of its digits is 290304, while the sum is 44.

The square root of 312896447 is about 17688.8791900448. The cubic root of 312896447 is about 678.8912489418.

The spelling of 312896447 in words is "three hundred twelve million, eight hundred ninety-six thousand, four hundred forty-seven".