49887799 has 8 divisors (see below), whose sum is σ = 53789792.
Its totient is φ = 45995040.
The previous prime is 49887797. The next prime is 49887811. The reversal of 49887799 is 99778894.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a Wieferich number.
It is not a de Polignac number, because 49887799 - 21 = 49887797 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 (49887797) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12454 + ... + 15964.
It is an arithmetic number, because the mean of its divisors is an integer number (6723724).
Almost surely, 249887799 is an apocalyptic number.
49887799 is a deficient number, since it is larger than the sum of its proper divisors (3901993).
49887799 is a wasteful number, since it uses less digits than its factorization.
49887799 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4617.
The product of its digits is 9144576, while the sum is 61.
The square root of 49887799 is about 7063.1295471625.
The cubic root of 49887799 is about 368.1273754679.
The spelling of 49887799 in words is "forty-nine million, eight hundred eighty-seven thousand, seven hundred ninety-nine".