49479823 has 4 divisors (see below), whose sum is σ = 49493920. Its totient is φ = 49465728.

The previous prime is 49479821. The next prime is 49479827. The reversal of 49479823 is 32897494.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 49479823 - 2¹ = 49479821 is a prime.

It is a super-2 number, since 2×49479823² = 4896505768222658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49479821) 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, 2863 + ... + 10351.

It is an arithmetic number, because the mean of its divisors is an integer number (12373480).

Almost surely, 2^49479823 is an apocalyptic number.

49479823 is a deficient number, since it is larger than the sum of its proper divisors (14097).

49479823 is an equidigital number, since it uses as much as digits as its factorization.

49479823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14096.

The product of its digits is 435456, while the sum is 46.

The square root of 49479823 is about 7034.1895766321. The cubic root of 49479823 is about 367.1211280415.

The spelling of 49479823 in words is "forty-nine million, four hundred seventy-nine thousand, eight hundred twenty-three".