4347945 has 64 divisors (see below), whose sum is σ = 9123840. Its totient is φ = 1923264.

The previous prime is 4347929. The next prime is 4347947. The reversal of 4347945 is 5497434.

It is not a de Polignac number, because 4347945 - 2⁴ = 4347929 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (4347947) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 40582 + ... + 40688.

It is an arithmetic number, because the mean of its divisors is an integer number (142560).

Almost surely, 2^4347945 is an apocalyptic number.

4347945 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4347945 is an abundant number, since it is smaller than the sum of its proper divisors (4775895).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4347945 is a wasteful number, since it uses less digits than its factorization.

4347945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 165 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 4347945 is about 2085.1726547219. The cubic root of 4347945 is about 163.2154802574.

The spelling of 4347945 in words is "four million, three hundred forty-seven thousand, nine hundred forty-five".