47697905 has 4 divisors (see below), whose sum is σ = 57237492. Its totient is φ = 38158320.

The previous prime is 47697893. The next prime is 47697911. The reversal of 47697905 is 50979674.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24039409 + 23658496 = 4903^2 + 4864^2 .

It is not a de Polignac number, because 47697905 - 2⁶ = 47697841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47697905.

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, 4769786 + ... + 4769795.

It is an arithmetic number, because the mean of its divisors is an integer number (14309373).

Almost surely, 2^47697905 is an apocalyptic number.

It is an amenable number.

47697905 is a deficient number, since it is larger than the sum of its proper divisors (9539587).

47697905 is an equidigital number, since it uses as much as digits as its factorization.

47697905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9539586.

The product of its (nonzero) digits is 476280, while the sum is 47.

The square root of 47697905 is about 6906.3669899593. The cubic root of 47697905 is about 362.6600925848.

The spelling of 47697905 in words is "forty-seven million, six hundred ninety-seven thousand, nine hundred five".