49830857 has 16 divisors (see below), whose sum is σ = 54853632. Its totient is φ = 45114960.

The previous prime is 49830841. The next prime is 49830871. The reversal of 49830857 is 75803894.

It is not a de Polignac number, because 49830857 - 2⁴ = 49830841 is a prime.

It is a super-2 number, since 2×49830857² = 4966228618708898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49830817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32768 + ... + 34254.

It is an arithmetic number, because the mean of its divisors is an integer number (3428352).

Almost surely, 2^49830857 is an apocalyptic number.

49830857 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

49830857 is a deficient number, since it is larger than the sum of its proper divisors (5022775).

49830857 is a wasteful number, since it uses less digits than its factorization.

49830857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 49830857 is about 7059.0974635572. The cubic root of 49830857 is about 367.9872617873.

The spelling of 49830857 in words is "forty-nine million, eight hundred thirty thousand, eight hundred fifty-seven".