48640839 has 16 divisors (see below), whose sum is σ = 71030400. Its totient is φ = 29424096.

The previous prime is 48640831. The next prime is 48640877. The reversal of 48640839 is 93804684.

It is not a de Polignac number, because 48640839 - 2³ = 48640831 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 48640839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48640831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8269 + ... + 12870.

It is an arithmetic number, because the mean of its divisors is an integer number (4439400).

Almost surely, 2^48640839 is an apocalyptic number.

48640839 is a deficient number, since it is larger than the sum of its proper divisors (22389561).

48640839 is a wasteful number, since it uses less digits than its factorization.

48640839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21214.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 48640839 is about 6974.2984593434. The cubic root of 48640839 is about 365.0343096540.

The spelling of 48640839 in words is "forty-eight million, six hundred forty thousand, eight hundred thirty-nine".