49438857 has 8 divisors (see below), whose sum is σ = 70989184. Its totient is φ = 30423888.

The previous prime is 49438849. The next prime is 49438897. The reversal of 49438857 is 75883494.

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

It is not a de Polignac number, because 49438857 - 2³ = 49438849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49438897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 633793 + ... + 633870.

It is an arithmetic number, because the mean of its divisors is an integer number (8873648).

Almost surely, 2^49438857 is an apocalyptic number.

It is an amenable number.

49438857 is a deficient number, since it is larger than the sum of its proper divisors (21550327).

49438857 is a wasteful number, since it uses less digits than its factorization.

49438857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267679.

The product of its digits is 967680, while the sum is 48.

The square root of 49438857 is about 7031.2770532813. The cubic root of 49438857 is about 367.0197827813.

The spelling of 49438857 in words is "forty-nine million, four hundred thirty-eight thousand, eight hundred fifty-seven".