43706345 has 4 divisors (see below), whose sum is σ = 52447620. Its totient is φ = 34965072.

The previous prime is 43706323. The next prime is 43706359. The reversal of 43706345 is 54360734.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54360734 = 2 ⋅27180367.

It can be written as a sum of positive squares in 2 ways, for example, as 15531481 + 28174864 = 3941^2 + 5308^2 .

It is a cyclic number.

It is not a de Polignac number, because 43706345 - 2⁶ = 43706281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4370630 + ... + 4370639.

It is an arithmetic number, because the mean of its divisors is an integer number (13111905).

Almost surely, 2^43706345 is an apocalyptic number.

It is an amenable number.

43706345 is a deficient number, since it is larger than the sum of its proper divisors (8741275).

43706345 is an equidigital number, since it uses as much as digits as its factorization.

43706345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8741274.

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 43706345 is about 6611.0774462261. The cubic root of 43706345 is about 352.2476976660.

The spelling of 43706345 in words is "forty-three million, seven hundred six thousand, three hundred forty-five".