47720853 has 16 divisors (see below), whose sum is σ = 74856960. Its totient is φ = 29942208.

The previous prime is 47720851. The next prime is 47720909. The reversal of 47720853 is 35802774.

It is not a de Polignac number, because 47720853 - 2¹ = 47720851 is a prime.

It is a super-2 number, since 2×47720853² = 4554559622095218, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47720851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51525 + ... + 52442.

It is an arithmetic number, because the mean of its divisors is an integer number (4678560).

Almost surely, 2^47720853 is an apocalyptic number.

It is an amenable number.

47720853 is a deficient number, since it is larger than the sum of its proper divisors (27136107).

47720853 is a wasteful number, since it uses less digits than its factorization.

47720853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103993 (or 103987 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 47720853 is about 6908.0281557041. The cubic root of 47720853 is about 362.7182432136.

The spelling of 47720853 in words is "forty-seven million, seven hundred twenty thousand, eight hundred fifty-three".