46978291 has 2 divisors, whose sum is σ = 46978292. Its totient is φ = 46978290.

The previous prime is 46978273. The next prime is 46978297. The reversal of 46978291 is 19287964.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 46978291 - 2⁷ = 46978163 is a prime.

It is not a weakly prime, because it can be changed into another prime (46978297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23489145 + 23489146.

It is an arithmetic number, because the mean of its divisors is an integer number (23489146).

Almost surely, 2^46978291 is an apocalyptic number.

46978291 is a deficient number, since it is larger than the sum of its proper divisors (1).

46978291 is an equidigital number, since it uses as much as digits as its factorization.

46978291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 46.

The square root of 46978291 is about 6854.0711259805. The cubic root of 46978291 is about 360.8270363325.

The spelling of 46978291 in words is "forty-six million, nine hundred seventy-eight thousand, two hundred ninety-one".