47808965 has 8 divisors (see below), whose sum is σ = 59349240. Its totient is φ = 36928192.

The previous prime is 47808961. The next prime is 47808967. The reversal of 47808965 is 56980874.

It can be written as a sum of positive squares in 4 ways, for example, as 9443329 + 38365636 = 3073^2 + 6194^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47808965 - 2² = 47808961 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47808961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164714 + ... + 165003.

It is an arithmetic number, because the mean of its divisors is an integer number (7418655).

Almost surely, 2^47808965 is an apocalyptic number.

It is an amenable number.

47808965 is a deficient number, since it is larger than the sum of its proper divisors (11540275).

47808965 is a wasteful number, since it uses less digits than its factorization.

47808965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329751.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 47808965 is about 6914.4027218553. The cubic root of 47808965 is about 362.9413474943.

The spelling of 47808965 in words is "forty-seven million, eight hundred eight thousand, nine hundred sixty-five".