49898405 has 4 divisors (see below), whose sum is σ = 59878092. Its totient is φ = 39918720.

The previous prime is 49898393. The next prime is 49898411. The reversal of 49898405 is 50489894.

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

It can be written as a sum of positive squares in 2 ways, for example, as 39664804 + 10233601 = 6298^2 + 3199^2 .

It is not a de Polignac number, because 49898405 - 2⁶ = 49898341 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 49898405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4989836 + ... + 4989845.

It is an arithmetic number, because the mean of its divisors is an integer number (14969523).

Almost surely, 2^49898405 is an apocalyptic number.

It is an amenable number.

49898405 is a deficient number, since it is larger than the sum of its proper divisors (9979687).

49898405 is an equidigital number, since it uses as much as digits as its factorization.

49898405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9979686.

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 49898405 is about 7063.8803075930. The cubic root of 49898405 is about 368.1534612201.

The spelling of 49898405 in words is "forty-nine million, eight hundred ninety-eight thousand, four hundred five".