49481947 has 16 divisors (see below), whose sum is σ = 54720000. Its totient is φ = 44535744.

The previous prime is 49481923. The next prime is 49481963. The reversal of 49481947 is 74918494.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49481947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49481897 and 49481906.

It is not an unprimeable number, because it can be changed into a prime (49461947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86679 + ... + 87247.

It is an arithmetic number, because the mean of its divisors is an integer number (3420000).

Almost surely, 2^49481947 is an apocalyptic number.

49481947 is a deficient number, since it is larger than the sum of its proper divisors (5238053).

49481947 is a wasteful number, since it uses less digits than its factorization.

49481947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810.

The product of its digits is 290304, while the sum is 46.

The square root of 49481947 is about 7034.3405518926. The cubic root of 49481947 is about 367.1263810522.

The spelling of 49481947 in words is "forty-nine million, four hundred eighty-one thousand, nine hundred forty-seven".