43978093 has 8 divisors (see below), whose sum is σ = 45979200. Its totient is φ = 41984448.

The previous prime is 43978087. The next prime is 43978111. The reversal of 43978093 is 39087934.

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 43978093 - 2⁵ = 43978061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43978043) 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, 12693 + ... + 15781.

It is an arithmetic number, because the mean of its divisors is an integer number (5747400).

Almost surely, 2^43978093 is an apocalyptic number.

It is an amenable number.

43978093 is a deficient number, since it is larger than the sum of its proper divisors (2001107).

43978093 is a wasteful number, since it uses less digits than its factorization.

43978093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3731.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 43978093 is about 6631.5980728630. The cubic root of 43978093 is about 352.9762333963.

The spelling of 43978093 in words is "forty-three million, nine hundred seventy-eight thousand, ninety-three".