48647839 has 6 divisors (see below), whose sum is σ = 48974856. Its totient is φ = 48322980.

The previous prime is 48647777. The next prime is 48647849. The reversal of 48647839 is 93874684.

It is not a de Polignac number, because 48647839 - 2⁹ = 48647327 is a prime.

It is a super-2 number, since 2×48647839² = 4733224478739842, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 48647792 and 48647801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48647849) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25654 + ... + 27484.

It is an arithmetic number, because the mean of its divisors is an integer number (8162476).

Almost surely, 2^48647839 is an apocalyptic number.

48647839 is a deficient number, since it is larger than the sum of its proper divisors (327017).

48647839 is an equidigital number, since it uses as much as digits as its factorization.

48647839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157 (or 1994 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 49.

The square root of 48647839 is about 6974.8002838791. The cubic root of 48647839 is about 365.0518197522.

The spelling of 48647839 in words is "forty-eight million, six hundred forty-seven thousand, eight hundred thirty-nine".