47926861 has 4 divisors (see below), whose sum is σ = 47998332. Its totient is φ = 47855392.

The previous prime is 47926849. The next prime is 47926883. The reversal of 47926861 is 16862974.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16862974 = 2 ⋅8431487.

It can be written as a sum of positive squares in 2 ways, for example, as 26071236 + 21855625 = 5106^2 + 4675^2 .

It is a cyclic number.

It is not a de Polignac number, because 47926861 - 2¹³ = 47918669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47926891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34720 + ... + 36073.

It is an arithmetic number, because the mean of its divisors is an integer number (11999583).

Almost surely, 2^47926861 is an apocalyptic number.

It is an amenable number.

47926861 is a deficient number, since it is larger than the sum of its proper divisors (71471).

47926861 is an equidigital number, since it uses as much as digits as its factorization.

47926861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71470.

The product of its digits is 145152, while the sum is 43.

The square root of 47926861 is about 6922.9228653799. The cubic root of 47926861 is about 363.2394380905.

The spelling of 47926861 in words is "forty-seven million, nine hundred twenty-six thousand, eight hundred sixty-one".