48639867 has 16 divisors (see below), whose sum is σ = 70114560. Its totient is φ = 29888352.

The previous prime is 48639863. The next prime is 48639889. The reversal of 48639867 is 76893684.

It is not a de Polignac number, because 48639867 - 2² = 48639863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (48639863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9423 + ... + 13640.

It is an arithmetic number, because the mean of its divisors is an integer number (4382160).

Almost surely, 2^48639867 is an apocalyptic number.

48639867 is a deficient number, since it is larger than the sum of its proper divisors (21474693).

48639867 is a wasteful number, since it uses less digits than its factorization.

48639867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23122.

The product of its digits is 1741824, while the sum is 51.

The square root of 48639867 is about 6974.2287745671. The cubic root of 48639867 is about 365.0318781190.

The spelling of 48639867 in words is "forty-eight million, six hundred thirty-nine thousand, eight hundred sixty-seven".