47345557 has 8 divisors (see below), whose sum is σ = 54210816. Its totient is φ = 40505712.

The previous prime is 47345539. The next prime is 47345593. The reversal of 47345557 is 75554374.

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 47345557 - 2¹¹ = 47343509 is a prime.

It is a super-3 number, since 3×47345557³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47345257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2173 + ... + 9970.

It is an arithmetic number, because the mean of its divisors is an integer number (6776352).

Almost surely, 2^47345557 is an apocalyptic number.

It is an amenable number.

47345557 is a deficient number, since it is larger than the sum of its proper divisors (6865259).

47345557 is a wasteful number, since it uses less digits than its factorization.

47345557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12707.

The product of its digits is 294000, while the sum is 40.

The square root of 47345557 is about 6880.8107807147. The cubic root of 47345557 is about 361.7648855352.

The spelling of 47345557 in words is "forty-seven million, three hundred forty-five thousand, five hundred fifty-seven".