49887994 has 8 divisors (see below), whose sum is σ = 80588340. Its totient is φ = 23025216.

The previous prime is 49887953. The next prime is 49888019. The reversal of 49887994 is 49978894.

It can be written as a sum of positive squares in 2 ways, for example, as 49885969 + 2025 = 7063^2 + 45^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 959359 + ... + 959410.

Almost surely, 2^49887994 is an apocalyptic number.

49887994 is a deficient number, since it is larger than the sum of its proper divisors (30700346).

49887994 is a wasteful number, since it uses less digits than its factorization.

49887994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918784.

The product of its digits is 5225472, while the sum is 58.

The square root of 49887994 is about 7063.1433512283. The cubic root of 49887994 is about 368.1278551091.

The spelling of 49887994 in words is "forty-nine million, eight hundred eighty-seven thousand, nine hundred ninety-four".