47788605 has 12 divisors (see below), whose sum is σ = 82833660. Its totient is φ = 25487232.

The previous prime is 47788597. The next prime is 47788627. The reversal of 47788605 is 50688774.

It can be written as a sum of positive squares in 2 ways, for example, as 5447556 + 42341049 = 2334^2 + 6507^2 .

It is not a de Polignac number, because 47788605 - 2³ = 47788597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1061969 = 47788605 / (4 + 7 + 7 + 8 + 8 + 6 + 0 + 5).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 530940 + ... + 531029.

It is an arithmetic number, because the mean of its divisors is an integer number (6902805).

Almost surely, 2^47788605 is an apocalyptic number.

47788605 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47788605 is a deficient number, since it is larger than the sum of its proper divisors (35045055).

47788605 is a wasteful number, since it uses less digits than its factorization.

47788605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061980 (or 1061977 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 47788605 is about 6912.9302759394. The cubic root of 47788605 is about 362.8898192572.

The spelling of 47788605 in words is "forty-seven million, seven hundred eighty-eight thousand, six hundred five".