47046649 has 8 divisors (see below), whose sum is σ = 51189320. Its totient is φ = 42978816.

The previous prime is 47046631. The next prime is 47046673. The reversal of 47046649 is 94664074.

It can be written as a sum of positive squares in 4 ways, for example, as 1281424 + 45765225 = 1132^2 + 6765^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47046649 - 2⁹ = 47046137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47046449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17394 + ... + 19915.

It is an arithmetic number, because the mean of its divisors is an integer number (6398665).

Almost surely, 2^47046649 is an apocalyptic number.

It is an amenable number.

47046649 is a deficient number, since it is larger than the sum of its proper divisors (4142671).

47046649 is a wasteful number, since it uses less digits than its factorization.

47046649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37419.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 47046649 is about 6859.0559846090. The cubic root of 47046649 is about 361.0019643696.

The spelling of 47046649 in words is "forty-seven million, forty-six thousand, six hundred forty-nine".