47049865 has 4 divisors (see below), whose sum is σ = 56459844. Its totient is φ = 37639888.

The previous prime is 47049857. The next prime is 47049883. The reversal of 47049865 is 56894074.

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 8311689 + 38738176 = 2883^2 + 6224^2 .

It is a cyclic number.

It is not a de Polignac number, because 47049865 - 2³ = 47049857 is a prime.

It is a Duffinian number.

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, 4704982 + ... + 4704991.

It is an arithmetic number, because the mean of its divisors is an integer number (14114961).

Almost surely, 2^47049865 is an apocalyptic number.

It is an amenable number.

47049865 is a deficient number, since it is larger than the sum of its proper divisors (9409979).

47049865 is an equidigital number, since it uses as much as digits as its factorization.

47049865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9409978.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 47049865 is about 6859.2904151960. The cubic root of 47049865 is about 361.0101899350.

The spelling of 47049865 in words is "forty-seven million, forty-nine thousand, eight hundred sixty-five".