312743473 has 4 divisors (see below), whose sum is σ = 357421120. Its totient is φ = 268065828.

The previous prime is 312743447. The next prime is 312743479. The reversal of 312743473 is 374347213.

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, and also an emirpimes, since its reverse is a distinct semiprime: 374347213 = 461 ⋅812033.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312743473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312743479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22338813 + ... + 22338826.

It is an arithmetic number, because the mean of its divisors is an integer number (89355280).

Almost surely, 2^312743473 is an apocalyptic number.

It is an amenable number.

312743473 is a deficient number, since it is larger than the sum of its proper divisors (44677647).

312743473 is an equidigital number, since it uses as much as digits as its factorization.

312743473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44677646.

The product of its digits is 42336, while the sum is 34.

The square root of 312743473 is about 17684.5546452264. The cubic root of 312743473 is about 678.7805950392.

The spelling of 312743473 in words is "three hundred twelve million, seven hundred forty-three thousand, four hundred seventy-three".