49781098 has 12 divisors (see below), whose sum is σ = 76115718. Its totient is φ = 24418160.

The previous prime is 49781087. The next prime is 49781107. The reversal of 49781098 is 89018794.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 48260809 + 1520289 = 6947^2 + 1233^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1188 + ... + 10048.

Almost surely, 2^49781098 is an apocalyptic number.

49781098 is a deficient number, since it is larger than the sum of its proper divisors (26334620).

49781098 is an equidigital number, since it uses as much as digits as its factorization.

49781098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8969 (or 8916 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 49781098 is about 7055.5721242150. The cubic root of 49781098 is about 367.8647354559.

Subtracting 49781098 from its reverse (89018794), we obtain a square (39237696 = 6264²).

The spelling of 49781098 in words is "forty-nine million, seven hundred eighty-one thousand, ninety-eight".