49998407 has 4 divisors (see below), whose sum is σ = 51722520. Its totient is φ = 48274296.

The previous prime is 49998401. The next prime is 49998419. The reversal of 49998407 is 70489994.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49998407 - 2¹⁸ = 49736263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49998401) 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, 862013 + ... + 862070.

It is an arithmetic number, because the mean of its divisors is an integer number (12930630).

Almost surely, 2^49998407 is an apocalyptic number.

49998407 is a deficient number, since it is larger than the sum of its proper divisors (1724113).

49998407 is a wasteful number, since it uses less digits than its factorization.

49998407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724112.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 49998407 is about 7070.9551688580. The cubic root of 49998407 is about 368.3992373810.

It can be divided in two parts, 49998 and 407, that added together give a palindrome (50405).

The spelling of 49998407 in words is "forty-nine million, nine hundred ninety-eight thousand, four hundred seven".