43472491 has 2 divisors, whose sum is σ = 43472492.
Its totient is φ = 43472490.
The previous prime is 43472467. The next prime is 43472497. The reversal of 43472491 is 19427434.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 43472491 - 215 = 43439723 is a prime.
It is not a weakly prime, because it can be changed into another prime (43472497) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21736245 + 21736246.
It is an arithmetic number, because the mean of its divisors is an integer number (21736246).
Almost surely, 243472491 is an apocalyptic number.
43472491 is a deficient number, since it is larger than the sum of its proper divisors (1).
43472491 is an equidigital number, since it uses as much as digits as its factorization.
43472491 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 24192, while the sum is 34.
The square root of 43472491 is about 6593.3671974189.
The cubic root of 43472491 is about 351.6183314694.
The spelling of 43472491 in words is "forty-three million, four hundred seventy-two thousand, four hundred ninety-one".