49181967 has 6 divisors (see below), whose sum is σ = 71040632. Its totient is φ = 32787972.

The previous prime is 49181959. The next prime is 49181971. The reversal of 49181967 is 76918194.

It is a happy number.

It is not a de Polignac number, because 49181967 - 2³ = 49181959 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 (49181267) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2732323 + ... + 2732340.

Almost surely, 2^49181967 is an apocalyptic number.

49181967 is a deficient number, since it is larger than the sum of its proper divisors (21858665).

49181967 is a wasteful number, since it uses less digits than its factorization.

49181967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5464669 (or 5464666 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 49181967 is about 7012.9855981600. The cubic root of 49181967 is about 366.3829861818.

The spelling of 49181967 in words is "forty-nine million, one hundred eighty-one thousand, nine hundred sixty-seven".