49993693 has 4 divisors (see below), whose sum is σ = 52624960. Its totient is φ = 47362428.

The previous prime is 49993679. The next prime is 49993721. The reversal of 49993693 is 39639994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49993693 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49993693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49993633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1315605 + ... + 1315642.

It is an arithmetic number, because the mean of its divisors is an integer number (13156240).

Almost surely, 2^49993693 is an apocalyptic number.

It is an amenable number.

49993693 is a deficient number, since it is larger than the sum of its proper divisors (2631267).

49993693 is a wasteful number, since it uses less digits than its factorization.

49993693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2631266.

The product of its digits is 1417176, while the sum is 52.

The square root of 49993693 is about 7070.6218255540. The cubic root of 49993693 is about 368.3876590882.

The spelling of 49993693 in words is "forty-nine million, nine hundred ninety-three thousand, six hundred ninety-three".