47046457 has 4 divisors (see below), whose sum is σ = 47934180. Its totient is φ = 46158736.

The previous prime is 47046449. The next prime is 47046469. The reversal of 47046457 is 75464074.

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

It can be written as a sum of positive squares in 2 ways, for example, as 33767721 + 13278736 = 5811^2 + 3644^2 .

It is a cyclic number.

It is not a de Polignac number, because 47046457 - 2³ = 47046449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47046427) 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 in 3 ways as a sum of consecutive naturals, for example, 443782 + ... + 443887.

It is an arithmetic number, because the mean of its divisors is an integer number (11983545).

Almost surely, 2^47046457 is an apocalyptic number.

It is an amenable number.

47046457 is a deficient number, since it is larger than the sum of its proper divisors (887723).

47046457 is an equidigital number, since it uses as much as digits as its factorization.

47046457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887722.

The product of its (nonzero) digits is 94080, while the sum is 37.

The square root of 47046457 is about 6859.0419884996. The cubic root of 47046457 is about 361.0014732792.

The spelling of 47046457 in words is "forty-seven million, forty-six thousand, four hundred fifty-seven".