49491783 has 24 divisors (see below), whose sum is σ = 80598000. Its totient is φ = 29993040.

The previous prime is 49491769. The next prime is 49491787. The reversal of 49491783 is 38719494.

49491783 is a `hidden beast` number, since 494 + 91 + 78 + 3 = 666.

It is not a de Polignac number, because 49491783 - 2⁹ = 49491271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49491787) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4308 + ... + 10841.

It is an arithmetic number, because the mean of its divisors is an integer number (3358250).

Almost surely, 2^49491783 is an apocalyptic number.

49491783 is a deficient number, since it is larger than the sum of its proper divisors (31106217).

49491783 is a wasteful number, since it uses less digits than its factorization.

49491783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15180 (or 15163 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 49491783 is about 7035.0396587368. The cubic root of 49491783 is about 367.1507051816.

The spelling of 49491783 in words is "forty-nine million, four hundred ninety-one thousand, seven hundred eighty-three".