47780276 has 6 divisors (see below), whose sum is σ = 83615490. Its totient is φ = 23890136.

The previous prime is 47780261. The next prime is 47780279. The reversal of 47780276 is 67208774.

It can be written as a sum of positive squares in only one way, i.e., 46512400 + 1267876 = 6820^2 + 1126^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47780279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5972531 + ... + 5972538.

It is an arithmetic number, because the mean of its divisors is an integer number (13935915).

Almost surely, 2^47780276 is an apocalyptic number.

It is an amenable number.

47780276 is a deficient number, since it is larger than the sum of its proper divisors (35835214).

47780276 is a wasteful number, since it uses less digits than its factorization.

47780276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11945073 (or 11945071 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 41.

The square root of 47780276 is about 6912.3278278739. The cubic root of 47780276 is about 362.8687355357.

The spelling of 47780276 in words is "forty-seven million, seven hundred eighty thousand, two hundred seventy-six".