43214091 has 4 divisors (see below), whose sum is σ = 57618792. Its totient is φ = 28809392.

The previous prime is 43214081. The next prime is 43214107. The reversal of 43214091 is 19041234.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43214091 - 2⁹ = 43213579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43214021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7202346 + ... + 7202351.

It is an arithmetic number, because the mean of its divisors is an integer number (14404698).

Almost surely, 2^43214091 is an apocalyptic number.

43214091 is a deficient number, since it is larger than the sum of its proper divisors (14404701).

43214091 is a wasteful number, since it uses less digits than its factorization.

43214091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14404700.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 43214091 is about 6573.7425413534. The cubic root of 43214091 is about 350.9202747475.

The spelling of 43214091 in words is "forty-three million, two hundred fourteen thousand, ninety-one".