49647890 has 8 divisors (see below), whose sum is σ = 89366220. Its totient is φ = 19859152.

The previous prime is 49647889. The next prime is 49647901. The reversal of 49647890 is 9874694.

It can be written as a sum of positive squares in 2 ways, for example, as 47430769 + 2217121 = 6887^2 + 1489^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2482385 + ... + 2482404.

Almost surely, 2^49647890 is an apocalyptic number.

49647890 is a deficient number, since it is larger than the sum of its proper divisors (39718330).

49647890 is a wasteful number, since it uses less digits than its factorization.

49647890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4964796.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 49647890 is about 7046.1258859035. The cubic root of 49647890 is about 367.5363223235.

The spelling of 49647890 in words is "forty-nine million, six hundred forty-seven thousand, eight hundred ninety".