49316643 has 24 divisors (see below), whose sum is σ = 76225968. Its totient is φ = 30615552.

The previous prime is 49316639. The next prime is 49316651. The reversal of 49316643 is 34661394.

49316643 is a `hidden beast` number, since 4 + 9 + 3 + 1 + 6 + 643 = 666.

It is not a de Polignac number, because 49316643 - 2² = 49316639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49316598 and 49316607.

It is not an unprimeable number, because it can be changed into a prime (49316843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13180 + ... + 16502.

It is an arithmetic number, because the mean of its divisors is an integer number (3176082).

Almost surely, 2^49316643 is an apocalyptic number.

49316643 is a deficient number, since it is larger than the sum of its proper divisors (26909325).

49316643 is a wasteful number, since it uses less digits than its factorization.

49316643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3443 (or 3440 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 49316643 is about 7022.5809358099. The cubic root of 49316643 is about 366.7171061006.

The spelling of 49316643 in words is "forty-nine million, three hundred sixteen thousand, six hundred forty-three".