49819783 has 4 divisors (see below), whose sum is σ = 53652088. Its totient is φ = 45987480.

The previous prime is 49819747. The next prime is 49819807. The reversal of 49819783 is 38791894.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38791894 = 2 ⋅19395947.

It is a cyclic number.

It is not a de Polignac number, because 49819783 - 2²⁵ = 16265351 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 (49819703) 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, 1916133 + ... + 1916158.

It is an arithmetic number, because the mean of its divisors is an integer number (13413022).

Almost surely, 2^49819783 is an apocalyptic number.

49819783 is a deficient number, since it is larger than the sum of its proper divisors (3832305).

49819783 is a wasteful number, since it uses less digits than its factorization.

49819783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3832304.

The product of its digits is 435456, while the sum is 49.

The square root of 49819783 is about 7058.3130420802. The cubic root of 49819783 is about 367.9600002798.

The spelling of 49819783 in words is "forty-nine million, eight hundred nineteen thousand, seven hundred eighty-three".