49186393 has 4 divisors (see below), whose sum is σ = 50232960. Its totient is φ = 48139828.

The previous prime is 49186309. The next prime is 49186399. The reversal of 49186393 is 39368194.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39368194 = 2 ⋅19684097.

It is a cyclic number.

It is not a de Polignac number, because 49186393 - 2²⁵ = 15631961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49186399) 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, 523213 + ... + 523306.

It is an arithmetic number, because the mean of its divisors is an integer number (12558240).

Almost surely, 2^49186393 is an apocalyptic number.

It is an amenable number.

49186393 is a deficient number, since it is larger than the sum of its proper divisors (1046567).

49186393 is a wasteful number, since it uses less digits than its factorization.

49186393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046566.

The product of its digits is 139968, while the sum is 43.

The square root of 49186393 is about 7013.3011485320. The cubic root of 49186393 is about 366.3939764055.

It can be divided in two parts, 4918 and 6393, that added together give a palindrome (11311).

The spelling of 49186393 in words is "forty-nine million, one hundred eighty-six thousand, three hundred ninety-three".