47457013 has 4 divisors (see below), whose sum is σ = 50248620. Its totient is φ = 44665408.

The previous prime is 47456987. The next prime is 47457019. The reversal of 47457013 is 31075474.

47457013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 37859409 + 9597604 = 6153^2 + 3098^2 .

It is a cyclic number.

It is not a de Polignac number, because 47457013 - 2⁹ = 47456501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47457019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1395778 + ... + 1395811.

It is an arithmetic number, because the mean of its divisors is an integer number (12562155).

Almost surely, 2^47457013 is an apocalyptic number.

It is an amenable number.

47457013 is a deficient number, since it is larger than the sum of its proper divisors (2791607).

47457013 is a wasteful number, since it uses less digits than its factorization.

47457013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2791606.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 47457013 is about 6888.9050653932. The cubic root of 47457013 is about 362.0485395266.

The spelling of 47457013 in words is "forty-seven million, four hundred fifty-seven thousand, thirteen".