46640047 has 2 divisors, whose sum is σ = 46640048. Its totient is φ = 46640046.

The previous prime is 46640039. The next prime is 46640063. The reversal of 46640047 is 74004664.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 46640047 - 2³ = 46640039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46640747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23320023 + 23320024.

It is an arithmetic number, because the mean of its divisors is an integer number (23320024).

Almost surely, 2^46640047 is an apocalyptic number.

46640047 is a deficient number, since it is larger than the sum of its proper divisors (1).

46640047 is an equidigital number, since it uses as much as digits as its factorization.

46640047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 46640047 is about 6829.3518726157. The cubic root of 46640047 is about 359.9589639439.

The spelling of 46640047 in words is "forty-six million, six hundred forty thousand, forty-seven".