47977293 has 64 divisors (see below), whose sum is σ = 83105792. Its totient is φ = 23950080.

The previous prime is 47977277. The next prime is 47977301. The reversal of 47977293 is 39277974.

It is a happy number.

47977293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47977293 - 2⁴ = 47977277 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47977393) 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 63 ways as a sum of consecutive naturals, for example, 716046 + ... + 716112.

It is an arithmetic number, because the mean of its divisors is an integer number (1298528).

Almost surely, 2^47977293 is an apocalyptic number.

47977293 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

47977293 is a deficient number, since it is larger than the sum of its proper divisors (35128499).

47977293 is a wasteful number, since it uses less digits than its factorization.

47977293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194.

The product of its digits is 666792, while the sum is 48.

The square root of 47977293 is about 6926.5642998531. The cubic root of 47977293 is about 363.3668020867.

It can be divided in two parts, 4797 and 7293, that added together give a triangular number (12090 = T₁₅₅).

The spelling of 47977293 in words is "forty-seven million, nine hundred seventy-seven thousand, two hundred ninety-three".