49791678 has 16 divisors (see below), whose sum is σ = 101899776. Its totient is φ = 16211160.

The previous prime is 49791667. The next prime is 49791683. The reversal of 49791678 is 87619794.

It is a super-2 number, since 2×49791678² = 4958422396111368, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 49791678.

It is a congruent number.

It is an unprimeable number.

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, 96238 + ... + 96753.

It is an arithmetic number, because the mean of its divisors is an integer number (6368736).

Almost surely, 2^49791678 is an apocalyptic number.

49791678 is an abundant number, since it is smaller than the sum of its proper divisors (52108098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49791678 is a wasteful number, since it uses less digits than its factorization.

49791678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193039.

The product of its digits is 762048, while the sum is 51.

The square root of 49791678 is about 7056.3218464013. The cubic root of 49791678 is about 367.8907944312.

The spelling of 49791678 in words is "forty-nine million, seven hundred ninety-one thousand, six hundred seventy-eight".