49999859 has 8 divisors (see below), whose sum is σ = 61538400. Its totient is φ = 39560256.

The previous prime is 49999853. The next prime is 49999877. The reversal of 49999859 is 95899994.

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

It is a cyclic number.

It is not a de Polignac number, because 49999859 - 2⁴ = 49999843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49999853) 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, 274634 + ... + 274815.

It is an arithmetic number, because the mean of its divisors is an integer number (7692300).

Almost surely, 2^49999859 is an apocalyptic number.

49999859 is a deficient number, since it is larger than the sum of its proper divisors (11538541).

49999859 is a wasteful number, since it uses less digits than its factorization.

49999859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549469.

The product of its digits is 9447840, while the sum is 62.

The square root of 49999859 is about 7071.0578416528. The cubic root of 49999859 is about 368.4028035648.

It can be divided in two parts, 4999985 and 9, that added together give a palindrome (4999994).

The spelling of 49999859 in words is "forty-nine million, nine hundred ninety-nine thousand, eight hundred fifty-nine".