43749727 has 8 divisors (see below), whose sum is σ = 50746496. Its totient is φ = 36939672.

The previous prime is 43749709. The next prime is 43749743. The reversal of 43749727 is 72794734.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43749727 - 2⁷ = 43749599 is a prime.

It is a super-2 number, since 2×43749727² = 3828077225149058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43749767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46173 + ... + 47110.

It is an arithmetic number, because the mean of its divisors is an integer number (6343312).

Almost surely, 2^43749727 is an apocalyptic number.

43749727 is a deficient number, since it is larger than the sum of its proper divisors (6996769).

43749727 is an equidigital number, since it uses as much as digits as its factorization.

43749727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93357.

The product of its digits is 296352, while the sum is 43.

The square root of 43749727 is about 6614.3576407691. The cubic root of 43749727 is about 352.3642036827.

The spelling of 43749727 in words is "forty-three million, seven hundred forty-nine thousand, seven hundred twenty-seven".