47791305 has 24 divisors (see below), whose sum is σ = 85512960. Its totient is φ = 24665760.

The previous prime is 47791277. The next prime is 47791343. The reversal of 47791305 is 50319774.

It is a happy number.

It is not a de Polignac number, because 47791305 - 2⁵ = 47791273 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 47791305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15735 + ... + 18524.

It is an arithmetic number, because the mean of its divisors is an integer number (3563040).

Almost surely, 2^47791305 is an apocalyptic number.

47791305 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47791305 is a deficient number, since it is larger than the sum of its proper divisors (37721655).

47791305 is a wasteful number, since it uses less digits than its factorization.

47791305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34301 (or 34298 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 47791305 is about 6913.1255593979. The cubic root of 47791305 is about 362.8966534112.

It can be divided in two parts, 4779 and 1305, that added together give a square (6084 = 78²).

The spelling of 47791305 in words is "forty-seven million, seven hundred ninety-one thousand, three hundred five".