47787456 has 28 divisors (see below), whose sum is σ = 126438152. Its totient is φ = 15929088.

The previous prime is 47787449. The next prime is 47787469. The reversal of 47787456 is 65478774.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124255 + ... + 124638.

Almost surely, 2^47787456 is an apocalyptic number.

It is an amenable number.

47787456 is an abundant number, since it is smaller than the sum of its proper divisors (78650696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47787456 is a wasteful number, since it uses less digits than its factorization.

47787456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248908 (or 248898 counting only the distinct ones).

The product of its digits is 1317120, while the sum is 48.

The square root of 47787456 is about 6912.8471703054. The cubic root of 47787456 is about 362.8869108669.

The spelling of 47787456 in words is "forty-seven million, seven hundred eighty-seven thousand, four hundred fifty-six".