49311393 has 4 divisors (see below), whose sum is σ = 65748528. Its totient is φ = 32874260.

The previous prime is 49311389. The next prime is 49311439. The reversal of 49311393 is 39311394.

49311393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 49311393 - 2² = 49311389 is a prime.

It is a super-2 number, since 2×49311393² = 4863226959200898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49311323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8218563 + ... + 8218568.

It is an arithmetic number, because the mean of its divisors is an integer number (16437132).

Almost surely, 2^49311393 is an apocalyptic number.

It is an amenable number.

49311393 is a deficient number, since it is larger than the sum of its proper divisors (16437135).

49311393 is a wasteful number, since it uses less digits than its factorization.

49311393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16437134.

The product of its digits is 8748, while the sum is 33.

The square root of 49311393 is about 7022.2071316645. The cubic root of 49311393 is about 366.7040926903.

Subtracting from 49311393 its reverse (39311394), we obtain a palindrome (9999999).

The spelling of 49311393 in words is "forty-nine million, three hundred eleven thousand, three hundred ninety-three".