47072277 has 24 divisors (see below), whose sum is σ = 78012480. Its totient is φ = 26792640.

The previous prime is 47072273. The next prime is 47072279. The reversal of 47072277 is 77227074.

It is not a de Polignac number, because 47072277 - 2² = 47072273 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47072273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16374 + ... + 19032.

It is an arithmetic number, because the mean of its divisors is an integer number (3250520).

Almost surely, 2^47072277 is an apocalyptic number.

It is an amenable number.

47072277 is a deficient number, since it is larger than the sum of its proper divisors (30940203).

47072277 is a wasteful number, since it uses less digits than its factorization.

47072277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2953 (or 2950 counting only the distinct ones).

The product of its (nonzero) digits is 38416, while the sum is 36.

The square root of 47072277 is about 6860.9239173744. The cubic root of 47072277 is about 361.0675027173.

The spelling of 47072277 in words is "forty-seven million, seventy-two thousand, two hundred seventy-seven".