48470809 has 4 divisors (see below), whose sum is σ = 48950820. Its totient is φ = 47990800.

The previous prime is 48470797. The next prime is 48470813. The reversal of 48470809 is 90807484.

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 34987225 + 13483584 = 5915^2 + 3672^2 .

It is a cyclic number.

It is not a de Polignac number, because 48470809 - 2¹⁵ = 48438041 is a prime.

It is a super-2 number, since 2×48470809² = 4698838650228962, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48470819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239854 + ... + 240055.

It is an arithmetic number, because the mean of its divisors is an integer number (12237705).

Almost surely, 2^48470809 is an apocalyptic number.

It is an amenable number.

48470809 is a deficient number, since it is larger than the sum of its proper divisors (480011).

48470809 is a wasteful number, since it uses less digits than its factorization.

48470809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480010.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 48470809 is about 6962.0980314845. The cubic root of 48470809 is about 364.6084723919.

The spelling of 48470809 in words is "forty-eight million, four hundred seventy thousand, eight hundred nine".