49089847 has 4 divisors (see below), whose sum is σ = 49172400. Its totient is φ = 49007296.

The previous prime is 49089841. The next prime is 49089851. The reversal of 49089847 is 74898094.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49089847 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49089847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49089841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40378 + ... + 41575.

It is an arithmetic number, because the mean of its divisors is an integer number (12293100).

Almost surely, 2^49089847 is an apocalyptic number.

49089847 is a deficient number, since it is larger than the sum of its proper divisors (82553).

49089847 is an equidigital number, since it uses as much as digits as its factorization.

49089847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82552.

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 49089847 is about 7006.4147036840. The cubic root of 49089847 is about 366.1540926991.

The spelling of 49089847 in words is "forty-nine million, eighty-nine thousand, eight hundred forty-seven".