47909153 has 4 divisors (see below), whose sum is σ = 47925780. Its totient is φ = 47892528.

The previous prime is 47909137. The next prime is 47909201. The reversal of 47909153 is 35190974.

It is a happy number.

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 19254544 + 28654609 = 4388^2 + 5353^2 .

It is a cyclic number.

It is not a de Polignac number, because 47909153 - 2⁴ = 47909137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47909053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2750 + ... + 10167.

It is an arithmetic number, because the mean of its divisors is an integer number (11981445).

Almost surely, 2^47909153 is an apocalyptic number.

It is an amenable number.

47909153 is a deficient number, since it is larger than the sum of its proper divisors (16627).

47909153 is a wasteful number, since it uses less digits than its factorization.

47909153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16626.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 47909153 is about 6921.6438076515. The cubic root of 47909153 is about 363.1946960524.

The spelling of 47909153 in words is "forty-seven million, nine hundred nine thousand, one hundred fifty-three".