49908643 has 4 divisors (see below), whose sum is σ = 52078608. Its totient is φ = 47738680.

The previous prime is 49908641. The next prime is 49908673. The reversal of 49908643 is 34680994.

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 49908643 - 2¹ = 49908641 is a prime.

It is a super-2 number, since 2×49908643² = 4981745292202898, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49908643.

It is not an unprimeable number, because it can be changed into a prime (49908641) 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, 1084948 + ... + 1084993.

It is an arithmetic number, because the mean of its divisors is an integer number (13019652).

Almost surely, 2^49908643 is an apocalyptic number.

49908643 is a deficient number, since it is larger than the sum of its proper divisors (2169965).

49908643 is a wasteful number, since it uses less digits than its factorization.

49908643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169964.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 49908643 is about 7064.6049429533. The cubic root of 49908643 is about 368.1786383601.

The spelling of 49908643 in words is "forty-nine million, nine hundred eight thousand, six hundred forty-three".