49996857 has 4 divisors (see below), whose sum is σ = 66662480. Its totient is φ = 33331236.

The previous prime is 49996829. The next prime is 49996909. The reversal of 49996857 is 75869994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 49996857 - 2⁸ = 49996601 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49996797 and 49996806.

It is not an unprimeable number, because it can be changed into a prime (49996157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8332807 + ... + 8332812.

It is an arithmetic number, because the mean of its divisors is an integer number (16665620).

Almost surely, 2^49996857 is an apocalyptic number.

It is an amenable number.

49996857 is a deficient number, since it is larger than the sum of its proper divisors (16665623).

49996857 is a wasteful number, since it uses less digits than its factorization.

49996857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16665622.

The product of its digits is 4898880, while the sum is 57.

The square root of 49996857 is about 7070.8455647115. The cubic root of 49996857 is about 368.3954304283.

The spelling of 49996857 in words is "forty-nine million, nine hundred ninety-six thousand, eight hundred fifty-seven".