43749497 has 8 divisors (see below), whose sum is σ = 47775360. Its totient is φ = 39731760.

The previous prime is 43749479. The next prime is 43749499. The reversal of 43749497 is 79494734.

43749497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 43749497 - 2¹⁰ = 43748473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43749499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17168 + ... + 19550.

It is an arithmetic number, because the mean of its divisors is an integer number (5971920).

Almost surely, 2^43749497 is an apocalyptic number.

It is an amenable number.

43749497 is a deficient number, since it is larger than the sum of its proper divisors (4025863).

43749497 is a wasteful number, since it uses less digits than its factorization.

43749497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4063.

The product of its digits is 762048, while the sum is 47.

The square root of 43749497 is about 6614.3402543262. The cubic root of 43749497 is about 352.3635862014.

The spelling of 43749497 in words is "forty-three million, seven hundred forty-nine thousand, four hundred ninety-seven".