49038857 has 6 divisors (see below), whose sum is σ = 57045258. Its totient is φ = 42033264.

The previous prime is 49038851. The next prime is 49038859. The reversal of 49038857 is 75883094.

It can be written as a sum of positive squares in only one way, i.e., 47831056 + 1207801 = 6916^2 + 1099^2 .

It is not a de Polignac number, because 49038857 - 2¹⁴ = 49022473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49038851) 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 5 ways as a sum of consecutive naturals, for example, 500348 + ... + 500445.

It is an arithmetic number, because the mean of its divisors is an integer number (9507543).

Almost surely, 2^49038857 is an apocalyptic number.

It is an amenable number.

49038857 is a deficient number, since it is larger than the sum of its proper divisors (8006401).

49038857 is a wasteful number, since it uses less digits than its factorization.

49038857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000807 (or 1000800 counting only the distinct ones).

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

The square root of 49038857 is about 7002.7749499752. The cubic root of 49038857 is about 366.0272730928.

The spelling of 49038857 in words is "forty-nine million, thirty-eight thousand, eight hundred fifty-seven".