49397894 has 32 divisors (see below), whose sum is σ = 92580096. Its totient is φ = 19245600.

The previous prime is 49397867. The next prime is 49397897. The reversal of 49397894 is 49879394.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49397897) 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 15 ways as a sum of consecutive naturals, for example, 10169 + ... + 14219.

It is an arithmetic number, because the mean of its divisors is an integer number (2893128).

Almost surely, 2^49397894 is an apocalyptic number.

49397894 is a deficient number, since it is larger than the sum of its proper divisors (43182202).

49397894 is a wasteful number, since it uses less digits than its factorization.

49397894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4140.

The product of its digits is 1959552, while the sum is 53.

The square root of 49397894 is about 7028.3635364144. The cubic root of 49397894 is about 366.9183889491.

The spelling of 49397894 in words is "forty-nine million, three hundred ninety-seven thousand, eight hundred ninety-four".