49178047 has 4 divisors (see below), whose sum is σ = 49198240. Its totient is φ = 49157856.

The previous prime is 49178033. The next prime is 49178057. The reversal of 49178047 is 74087194.

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

It is a cyclic number.

It is not a de Polignac number, because 49178047 - 2²³ = 40789439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49178057) 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, 5847 + ... + 11512.

It is an arithmetic number, because the mean of its divisors is an integer number (12299560).

Almost surely, 2^49178047 is an apocalyptic number.

49178047 is a deficient number, since it is larger than the sum of its proper divisors (20193).

49178047 is a wasteful number, since it uses less digits than its factorization.

49178047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20192.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 49178047 is about 7012.7061110530. The cubic root of 49178047 is about 366.3732518588.

The spelling of 49178047 in words is "forty-nine million, one hundred seventy-eight thousand, forty-seven".