43394897 has 16 divisors (see below), whose sum is σ = 56552832. Its totient is φ = 32313600.

The previous prime is 43394881. The next prime is 43394903. The reversal of 43394897 is 79849334.

It is not a de Polignac number, because 43394897 - 2⁴ = 43394881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43394867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12479 + ... + 15572.

It is an arithmetic number, because the mean of its divisors is an integer number (3534552).

Almost surely, 2^43394897 is an apocalyptic number.

It is an amenable number.

43394897 is a deficient number, since it is larger than the sum of its proper divisors (13157935).

43394897 is a wasteful number, since it uses less digits than its factorization.

43394897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28088.

The product of its digits is 653184, while the sum is 47.

The square root of 43394897 is about 6587.4803225513. The cubic root of 43394897 is about 351.4090058243.

The spelling of 43394897 in words is "forty-three million, three hundred ninety-four thousand, eight hundred ninety-seven".