43278097 has 8 divisors (see below), whose sum is σ = 44149952. Its totient is φ = 42411600.

The previous prime is 43278089. The next prime is 43278113. The reversal of 43278097 is 79087234.

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 43278097 - 2³ = 43278089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43278497) 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, 17572 + ... + 19882.

It is an arithmetic number, because the mean of its divisors is an integer number (5518744).

Almost surely, 2^43278097 is an apocalyptic number.

It is an amenable number.

43278097 is a deficient number, since it is larger than the sum of its proper divisors (871855).

43278097 is a wasteful number, since it uses less digits than its factorization.

43278097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2679.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 43278097 is about 6578.6090475115. The cubic root of 43278097 is about 351.0934429775.

The spelling of 43278097 in words is "forty-three million, two hundred seventy-eight thousand, ninety-seven".