48699639 has 6 divisors (see below), whose sum is σ = 70343936. Its totient is φ = 32466420.

The previous prime is 48699619. The next prime is 48699649. The reversal of 48699639 is 93699684.

It is a happy number.

It is not a de Polignac number, because 48699639 - 2⁹ = 48699127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48699619) 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, 2705527 + ... + 2705544.

Almost surely, 2^48699639 is an apocalyptic number.

48699639 is a deficient number, since it is larger than the sum of its proper divisors (21644297).

48699639 is a wasteful number, since it uses less digits than its factorization.

48699639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5411077 (or 5411074 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The square root of 48699639 is about 6978.5126638848. The cubic root of 48699639 is about 365.1813423029.

The spelling of 48699639 in words is "forty-eight million, six hundred ninety-nine thousand, six hundred thirty-nine".