49835978 has 12 divisors (see below), whose sum is σ = 77423190. Its totient is φ = 24057936.

The previous prime is 49835971. The next prime is 49835983. The reversal of 49835978 is 87953894.

It can be written as a sum of positive squares in 3 ways, for example, as 48958009 + 877969 = 6997^2 + 937^2 .

It is not an unprimeable number, because it can be changed into a prime (49835971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13133 + ... + 16496.

Almost surely, 2^49835978 is an apocalyptic number.

49835978 is a deficient number, since it is larger than the sum of its proper divisors (27587212).

49835978 is a wasteful number, since it uses less digits than its factorization.

49835978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29689 (or 29660 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 53.

The square root of 49835978 is about 7059.4601776623. The cubic root of 49835978 is about 367.9998670841. Note that the first 3 decimals are identical.

The spelling of 49835978 in words is "forty-nine million, eight hundred thirty-five thousand, nine hundred seventy-eight".