49778467 has 4 divisors (see below), whose sum is σ = 51384256. Its totient is φ = 48172680.

The previous prime is 49778459. The next prime is 49778473. The reversal of 49778467 is 76487794.

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 49778467 - 2³ = 49778459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49778167) 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, 802848 + ... + 802909.

It is an arithmetic number, because the mean of its divisors is an integer number (12846064).

Almost surely, 2^49778467 is an apocalyptic number.

49778467 is a deficient number, since it is larger than the sum of its proper divisors (1605789).

49778467 is a wasteful number, since it uses less digits than its factorization.

49778467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605788.

The product of its digits is 2370816, while the sum is 52.

The square root of 49778467 is about 7055.3856733704. The cubic root of 49778467 is about 367.8582546214.

The spelling of 49778467 in words is "forty-nine million, seven hundred seventy-eight thousand, four hundred sixty-seven".