320346747 has 12 divisors (see below), whose sum is σ = 528826480. Its totient is φ = 183055248.

The previous prime is 320346739. The next prime is 320346769. The reversal of 320346747 is 747643023.

It is a happy number.

It is not a de Polignac number, because 320346747 - 2³ = 320346739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320346727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2542372 + ... + 2542497.

Almost surely, 2^320346747 is an apocalyptic number.

320346747 is a deficient number, since it is larger than the sum of its proper divisors (208479733).

320346747 is a wasteful number, since it uses less digits than its factorization.

320346747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5084882 (or 5084879 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 36.

The square root of 320346747 is about 17898.2330692166. The cubic root of 320346747 is about 684.2373432522.

It can be divided in two parts, 32034 and 6747, that added together give a triangular number (38781 = T₂₇₈).

The spelling of 320346747 in words is "three hundred twenty million, three hundred forty-six thousand, seven hundred forty-seven".