49781967 has 8 divisors (see below), whose sum is σ = 70280496. Its totient is φ = 31235712.

The previous prime is 49781911. The next prime is 49781969. The reversal of 49781967 is 76918794.

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

It is not a de Polignac number, because 49781967 - 2⁶ = 49781903 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 976117 = 49781967 / (4 + 9 + 7 + 8 + 1 + 9 + 6 + 7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49781969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488008 + ... + 488109.

It is an arithmetic number, because the mean of its divisors is an integer number (8785062).

Almost surely, 2^49781967 is an apocalyptic number.

49781967 is a deficient number, since it is larger than the sum of its proper divisors (20498529).

49781967 is a wasteful number, since it uses less digits than its factorization.

49781967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976137.

The product of its digits is 762048, while the sum is 51.

The square root of 49781967 is about 7055.6337064788. The cubic root of 49781967 is about 367.8668759778.

The spelling of 49781967 in words is "forty-nine million, seven hundred eighty-one thousand, nine hundred sixty-seven".