47775078 has 48 divisors (see below), whose sum is σ = 113336496. Its totient is φ = 14454720.

The previous prime is 47775067. The next prime is 47775109. The reversal of 47775078 is 87057774.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12601 + ... + 15947.

It is an arithmetic number, because the mean of its divisors is an integer number (2361177).

Almost surely, 2^47775078 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47775078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56668248).

47775078 is an abundant number, since it is smaller than the sum of its proper divisors (65561418).

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

47775078 is a wasteful number, since it uses less digits than its factorization.

47775078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3429 (or 3426 counting only the distinct ones).

The product of its (nonzero) digits is 384160, while the sum is 45.

The square root of 47775078 is about 6911.9518227488. The cubic root of 47775078 is about 362.8555762696.

The spelling of 47775078 in words is "forty-seven million, seven hundred seventy-five thousand, seventy-eight".