49639803 has 8 divisors (see below), whose sum is σ = 66225168. Its totient is φ = 33073824.

The previous prime is 49639801. The next prime is 49639817. The reversal of 49639803 is 30893694.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49639803 - 2¹ = 49639801 is a prime.

It is a super-2 number, since 2×49639803² = 4928220083757618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49639801) 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 7 ways as a sum of consecutive naturals, for example, 2901 + ... + 10377.

It is an arithmetic number, because the mean of its divisors is an integer number (8278146).

Almost surely, 2^49639803 is an apocalyptic number.

49639803 is a deficient number, since it is larger than the sum of its proper divisors (16585365).

49639803 is a wasteful number, since it uses less digits than its factorization.

49639803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9693.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 49639803 is about 7045.5520010855. The cubic root of 49639803 is about 367.5163656000.

The spelling of 49639803 in words is "forty-nine million, six hundred thirty-nine thousand, eight hundred three".