47215273 has 12 divisors (see below), whose sum is σ = 58155732. Its totient is φ = 38088960.

The previous prime is 47215261. The next prime is 47215279. The reversal of 47215273 is 37251274.

It can be written as a sum of positive squares in 2 ways, for example, as 30503529 + 16711744 = 5523^2 + 4088^2 .

It is not a de Polignac number, because 47215273 - 2¹³ = 47207081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47215279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27508 + ... + 29173.

It is an arithmetic number, because the mean of its divisors is an integer number (4846311).

Almost surely, 2^47215273 is an apocalyptic number.

It is an amenable number.

47215273 is a deficient number, since it is larger than the sum of its proper divisors (10940459).

47215273 is a wasteful number, since it uses less digits than its factorization.

47215273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56712 (or 56705 counting only the distinct ones).

The product of its digits is 11760, while the sum is 31.

The square root of 47215273 is about 6871.3370605727. The cubic root of 47215273 is about 361.4327496543.

The spelling of 47215273 in words is "forty-seven million, two hundred fifteen thousand, two hundred seventy-three".