47708775 has 18 divisors (see below), whose sum is σ = 85452120. Its totient is φ = 25444560.

The previous prime is 47708747. The next prime is 47708779. The reversal of 47708775 is 57780774.

It is a happy number.

It is not a de Polignac number, because 47708775 - 2⁶ = 47708711 is a prime.

It is a super-2 number, since 2×47708775² = 4552254424001250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 47708775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47708779) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 105795 + ... + 106244.

It is an arithmetic number, because the mean of its divisors is an integer number (4747340).

Almost surely, 2^47708775 is an apocalyptic number.

47708775 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

47708775 is a deficient number, since it is larger than the sum of its proper divisors (37743345).

47708775 is a wasteful number, since it uses less digits than its factorization.

47708775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212055 (or 212047 counting only the distinct ones).

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

The square root of 47708775 is about 6907.1539001241. The cubic root of 47708775 is about 362.6876396772.

The spelling of 47708775 in words is "forty-seven million, seven hundred eight thousand, seven hundred seventy-five".